• Formal practice should take 30-60 minutes/day. It can be divided into as many as 4 sessions/day at times of participants' choosing, but the recommended times are after waking up in the morning and before going to bed at night.
• There is no limit to the number of times informal practice can be performed during the day.
• Use of a diary is necessary to record the time and duration of all formal and informal practices.
• The intervention will have a duration of 60 days. During this period, participants are to take part only in the intervention to which they have been randomized and no other. After this period of time and during the follow-up, participants will be able to practise any kind of meditation and at times of their choosing, but this information must always be recorded in their diary.

• Formal practice should take 30-60 minutes/day. It can be divided into as many as 4 sessions/day at times of participants' choosing, but the recommended times are after waking up in the morning and before going to bed at night.
• There is no limit to the number of times informal practice can be performed during the day.
• Use of a diary is necessary to record the time and duration of all formal and informal practices.
• The intervention will have a duration of 60 days. During this period, participants are to take part only in the intervention to which they have been randomized and no other. After this period of time and during the follow-up, participants will be able to practise any kind of meditation and at times of their choosing, but this information must always be recorded in their diary.

• Formal practice should take 30-60 minutes/day. It can be divided into as many as 4 sessions/day at times of participants' choosing, but the recommended times are after waking up in the morning and before going to bed at night.
• There is no limit to the number of times informal practice can be performed during the day.
• Use of a diary is necessary to record the time and duration of all formal and informal practices.
• The intervention will have a duration of 60 days. During this period, participants are to take part only in the intervention to which they have been randomized and no other. After this period of time and during the follow-up, participants will be able to practise any kind of meditation and at times of their choosing, but this information must always be recorded in their diary.

In the prostrations, according to Tibetan Buddhist tradition, group. A total score, ranging from 20 to 100, is calculated by totalling the scores from all the items, with higher scores indicating higher levels of non-dual awareness

In the prostrations, according to Tibetan Buddhist tradition, group. A total score, ranging from 20 to 100, is calculated by totalling the scores from all the items, with higher scores indicating higher levels of non-dual awareness

In the Koan Mu, according to Zen Buddhist tradition, group. A total score, ranging from 20 to 100, is calculated by totalling the scores from all the items, with higher scores indicating higher levels of non-dual awareness

In the Koan Mu, according to Zen Buddhist tradition, group. A total score, ranging from 20 to 100, is calculated by totalling the scores from all the items, with higher scores indicating higher levels of non-dual awareness

In the Koan Mu, according to Zen Buddhist tradition, group. A total score, ranging from 20 to 100, is calculated by totalling the scores from all the items, with higher scores indicating higher levels of non-dual awareness

In the Koan Mu, according to Zen Buddhist tradition, group. A total score, ranging from 20 to 100, is calculated by totalling the scores from all the items, with higher scores indicating higher levels of non-dual awareness

In the mirror exercise, according to Toltec tradition, group. A total score, ranging from 20 to 100, is calculated by totalling the scores from all the items, with higher scores indicating higher levels of non-dual awareness

In the mirror exercise, according to Toltec tradition, group. A total score, ranging from 20 to 100, is calculated by totalling the scores from all the items, with higher scores indicating higher levels of non-dual awareness

In the mirror exercise, according to Toltec tradition, group. A total score, ranging from 20 to 100, is calculated by totalling the scores from all the items, with higher scores indicating higher levels of non-dual awareness

In the mirror exercise, according to Toltec tradition, group. A total score, ranging from 20 to 100, is calculated by totalling the scores from all the items, with higher scores indicating higher levels of non-dual awareness

In the Koan Mu, according to Zen Buddhist tradition, group

In the mirror exercise, according to Toltec tradition, group

In the mindful breathing group

In the mindful breathing group

In the mindful breathing group

In the mindful breathing group

In the prostrations, according to Tibetan Buddhist tradition, group

In the prostrations, according to Tibetan Buddhist tradition, group

In the prostrations, according to Tibetan Buddhist tradition, group

In the prostrations, according to Tibetan Buddhist tradition, group

In the Koan Mu, according to Zen Buddhist tradition, group

In the Koan Mu, according to Zen Buddhist tradition, group

In the Koan Mu, according to Zen Buddhist tradition, group

In the Koan Mu, according to Zen Buddhist tradition, group

In the mirror exercise, according to Toltec tradition, group

In the mirror exercise, according to Toltec tradition, group

In the mirror exercise, according to Toltec tradition, group

In the mirror exercise, according to Toltec tradition, group

In the mindful breathing group. A total score, ranging from 39 to 195, is calculated by totalling the scores from all the items, and higher total values indicate better full mindfulness

In the mindful breathing group. A total score, ranging from 39 to 195, is calculated by totalling the scores from all the items, and higher total values indicate better full mindfulness

In the mindful breathing group. A total score, ranging from 39 to 195, is calculated by totalling the scores from all the items, and higher total values indicate better full mindfulness

In the mindful breathing group. A total score, ranging from 39 to 195, is calculated by totalling the scores from all the items, and higher total values indicate better full mindfulness

In the prostrations, according to Tibetan Buddhist tradition, group. A total score, ranging from 39 to 195, is calculated by totalling the scores from all the items, and higher total values indicate better full mindfulness

In the prostrations, according to Tibetan Buddhist tradition, group. A total score, ranging from 39 to 195, is calculated by totalling the scores from all the items, and higher total values indicate better full mindfulness

In the prostrations, according to Tibetan Buddhist tradition, group. A total score, ranging from 39 to 195, is calculated by totalling the scores from all the items, and higher total values indicate better full mindfulness

In the prostrations, according to Tibetan Buddhist tradition, group. A total score, ranging from 39 to 195, is calculated by totalling the scores from all the items, and higher total values indicate better full mindfulness

In the Koan Mu, according to Zen Buddhist tradition, group. A total score, ranging from 39 to 195, is calculated by totalling the scores from all the items, and higher total values indicate better full mindfulness

In the Koan Mu, according to Zen Buddhist tradition, group. A total score, ranging from 39 to 195, is calculated by totalling the scores from all the items, and higher total values indicate better full mindfulness

In the Koan Mu, according to Zen Buddhist tradition, group. A total score, ranging from 39 to 195, is calculated by totalling the scores from all the items, and higher total values indicate better full mindfulness

In the Koan Mu, according to Zen Buddhist tradition, group. A total score, ranging from 39 to 195, is calculated by totalling the scores from all the items, and higher total values indicate better full mindfulness

In the mirror exercise, according to Toltec tradition, group. A total score, ranging from 39 to 195, is calculated by totalling the scores from all the items, and higher total values indicate better full mindfulness

In the mirror exercise, according to Toltec tradition, group. A total score, ranging from 39 to 195, is calculated by totalling the scores from all the items, and higher total values indicate better full mindfulness

In the mirror exercise, according to Toltec tradition, group. A total score, ranging from 39 to 195, is calculated by totalling the scores from all the items, and higher total values indicate better full mindfulness

In the mirror exercise, according to Toltec tradition, group. A total score, ranging from 39 to 195, is calculated by totalling the scores from all the items, and higher total values indicate better full mindfulness

In the mindful breathing group. This scale is composed by two 20-item self-report scales measuring compassion. A total score, ranging from 20 to 100, is calculated for each scale, and higher total values indicate higher levels of compassion

In the mindful breathing group. This scale is composed by two 20-item self-report scales measuring compassion. A total score, ranging from 20 to 100, is calculated for each scale, and higher total values indicate higher levels of compassion

In the mindful breathing group. This scale is composed by two 20-item self-report scales measuring compassion. A total score, ranging from 20 to 100, is calculated for each scale, and higher total values indicate higher levels of compassion

In the mindful breathing group. This scale is composed by two 20-item self-report scales measuring compassion. A total score, ranging from 20 to 100, is calculated for each scale, and higher total values indicate higher levels of compassion

In the prostrations, according to Tibetan Buddhist tradition, group. This scale is composed by two 20-item self-report scales measuring compassion. A total score, ranging from 20 to 100, is calculated for each scale, and higher total values indicate higher levels of compassion

In the prostrations, according to Tibetan Buddhist tradition, group. This scale is composed by two 20-item self-report scales measuring compassion. A total score, ranging from 20 to 100, is calculated for each scale, and higher total values indicate higher levels of compassion

In the prostrations, according to Tibetan Buddhist tradition, group. This scale is composed by two 20-item self-report scales measuring compassion. A total score, ranging from 20 to 100, is calculated for each scale, and higher total values indicate higher levels of compassion

In the prostrations, according to Tibetan Buddhist tradition, group. This scale is composed by two 20-item self-report scales measuring compassion. A total score, ranging from 20 to 100, is calculated for each scale, and higher total values indicate higher levels of compassion

In the Koan Mu, according to Zen Buddhist tradition, group. This scale is composed by two 20-item self-report scales measuring compassion. A total score, ranging from 20 to 100, is calculated for each scale, and higher total values indicate higher levels of compassion

In the Koan Mu, according to Zen Buddhist tradition, group. This scale is composed by two 20-item self-report scales measuring compassion. A total score, ranging from 20 to 100, is calculated for each scale, and higher total values indicate higher levels of compassion

In the Koan Mu, according to Zen Buddhist tradition, group. This scale is composed by two 20-item self-report scales measuring compassion. A total score, ranging from 20 to 100, is calculated for each scale, and higher total values indicate higher levels of compassion

In the Koan Mu, according to Zen Buddhist tradition, group. This scale is composed by two 20-item self-report scales measuring compassion. A total score, ranging from 20 to 100, is calculated for each scale, and higher total values indicate higher levels of compassion

In the mirror exercise, according to Toltec tradition, group. This scale is composed by two 20-item self-report scales measuring compassion. A total score, ranging from 20 to 100, is calculated for each scale, and higher total values indicate higher levels of compassion

In the mirror exercise, according to Toltec tradition, group. This scale is composed by two 20-item self-report scales measuring compassion. A total score, ranging from 20 to 100, is calculated for each scale, and higher total values indicate higher levels of compassion

In the mirror exercise, according to Toltec tradition, group. This scale is composed by two 20-item self-report scales measuring compassion. A total score, ranging from 20 to 100, is calculated for each scale, and higher total values indicate higher levels of compassion

In the mirror exercise, according to Toltec tradition, group. This scale is composed by two 20-item self-report scales measuring compassion. A total score, ranging from 20 to 100, is calculated for each scale, and higher total values indicate higher levels of compassion

In the mindful breathing group. To calculate the overall PHI index, which included remembered and experienced well-being, individuals' scores of the 11 items related to remembered well-being plus the sum of scores on the experienced well-being were summed; the total sum is then divided by 12, so the resulting PHI total mean score also ranges from 0 to 10. Higher total values indicate higher levels of well-being

In the mindful breathing group. To calculate the overall PHI index, which included remembered and experienced well-being, individuals' scores of the 11 items related to remembered well-being plus the sum of scores on the experienced well-being were summed; the total sum is then divided by 12, so the resulting PHI total mean score also ranges from 0 to 10. Higher total values indicate higher levels of well-being

In the mindful breathing group. To calculate the overall PHI index, which included remembered and experienced well-being, individuals' scores of the 11 items related to remembered well-being plus the sum of scores on the experienced well-being were summed; the total sum is then divided by 12, so the resulting PHI total mean score also ranges from 0 to 10. Higher total values indicate higher levels of well-being

In the mindful breathing group. To calculate the overall PHI index, which included remembered and experienced well-being, individuals' scores of the 11 items related to remembered well-being plus the sum of scores on the experienced well-being were summed; the total sum is then divided by 12, so the resulting PHI total mean score also ranges from 0 to 10. Higher total values indicate higher levels of well-being

In the prostrations, according to Tibetan Buddhist tradition, group. To calculate the overall PHI index, which included remembered and experienced well-being, individuals' scores of the 11 items related to remembered well-being plus the sum of scores on the experienced well-being were summed; the total sum is then divided by 12, so the resulting PHI total mean score also ranges from 0 to 10. Higher total values indicate higher levels of well-being

In the prostrations, according to Tibetan Buddhist tradition, group. To calculate the overall PHI index, which included remembered and experienced well-being, individuals' scores of the 11 items related to remembered well-being plus the sum of scores on the experienced well-being were summed; the total sum is then divided by 12, so the resulting PHI total mean score also ranges from 0 to 10. Higher total values indicate higher levels of well-being

In the prostrations, according to Tibetan Buddhist tradition, group. To calculate the overall PHI index, which included remembered and experienced well-being, individuals' scores of the 11 items related to remembered well-being plus the sum of scores on the experienced well-being were summed; the total sum is then divided by 12, so the resulting PHI total mean score also ranges from 0 to 10. Higher total values indicate higher levels of well-being

In the prostrations, according to Tibetan Buddhist tradition, group. To calculate the overall PHI index, which included remembered and experienced well-being, individuals' scores of the 11 items related to remembered well-being plus the sum of scores on the experienced well-being were summed; the total sum is then divided by 12, so the resulting PHI total mean score also ranges from 0 to 10. Higher total values indicate higher levels of well-being

In the Koan Mu, according to Zen Buddhist tradition, group. To calculate the overall PHI index, which included remembered and experienced well-being, individuals' scores of the 11 items related to remembered well-being plus the sum of scores on the experienced well-being were summed; the total sum is then divided by 12, so the resulting PHI total mean score also ranges from 0 to 10. Higher total values indicate higher levels of well-being

In the Koan Mu, according to Zen Buddhist tradition, group. To calculate the overall PHI index, which included remembered and experienced well-being, individuals' scores of the 11 items related to remembered well-being plus the sum of scores on the experienced well-being were summed; the total sum is then divided by 12, so the resulting PHI total mean score also ranges from 0 to 10. Higher total values indicate higher levels of well-being

In the Koan Mu, according to Zen Buddhist tradition, group. To calculate the overall PHI index, which included remembered and experienced well-being, individuals' scores of the 11 items related to remembered well-being plus the sum of scores on the experienced well-being were summed; the total sum is then divided by 12, so the resulting PHI total mean score also ranges from 0 to 10. Higher total values indicate higher levels of well-being

In the Koan Mu, according to Zen Buddhist tradition, group. To calculate the overall PHI index, which included remembered and experienced well-being, individuals' scores of the 11 items related to remembered well-being plus the sum of scores on the experienced well-being were summed; the total sum is then divided by 12, so the resulting PHI total mean score also ranges from 0 to 10. Higher total values indicate higher levels of well-being

In the mirror exercise, according to Toltec tradition, group. To calculate the overall PHI index, which included remembered and experienced well-being, individuals' scores of the 11 items related to remembered well-being plus the sum of scores on the experienced well-being were summed; the total sum is then divided by 12, so the resulting PHI total mean score also ranges from 0 to 10. Higher total values indicate higher levels of well-being

In the mirror exercise, according to Toltec tradition, group. To calculate the overall PHI index, which included remembered and experienced well-being, individuals' scores of the 11 items related to remembered well-being plus the sum of scores on the experienced well-being were summed; the total sum is then divided by 12, so the resulting PHI total mean score also ranges from 0 to 10. Higher total values indicate higher levels of well-being

In the mirror exercise, according to Toltec tradition, group. To calculate the overall PHI index, which included remembered and experienced well-being, individuals' scores of the 11 items related to remembered well-being plus the sum of scores on the experienced well-being were summed; the total sum is then divided by 12, so the resulting PHI total mean score also ranges from 0 to 10. Higher total values indicate higher levels of well-being

In the mirror exercise, according to Toltec tradition, group. To calculate the overall PHI index, which included remembered and experienced well-being, individuals' scores of the 11 items related to remembered well-being plus the sum of scores on the experienced well-being were summed; the total sum is then divided by 12, so the resulting PHI total mean score also ranges from 0 to 10. Higher total values indicate higher levels of well-being

In the mindful breathing group. This questionnaire comprises 20 items and two independent dimensions: positive affect and negative effect. Each scale has 10 items, and the score range for each is from 10 to 50. Higher total values indicate higher level of positive affect and negative effect respectively.

In the mindful breathing group. This questionnaire comprises 20 items and two independent dimensions: positive affect and negative effect. Each scale has 10 items, and the score range for each is from 10 to 50. Higher total values indicate higher level of positive affect and negative effect respectively.

In the mindful breathing group. This questionnaire comprises 20 items and two independent dimensions: positive affect and negative effect. Each scale has 10 items, and the score range for each is from 10 to 50. Higher total values indicate higher level of positive affect and negative effect respectively.

In the mindful breathing group. This questionnaire comprises 20 items and two independent dimensions: positive affect and negative effect. Each scale has 10 items, and the score range for each is from 10 to 50. Higher total values indicate higher level of positive affect and negative effect respectively.

In the prostrations, according to Tibetan Buddhist tradition, group. This questionnaire comprises 20 items and two independent dimensions: positive affect and negative effect. Each scale has 10 items, and the score range for each is from 10 to 50. Higher total values indicate higher level of positive affect and negative effect respectively.

In the prostrations, according to Tibetan Buddhist tradition, group. This questionnaire comprises 20 items and two independent dimensions: positive affect and negative effect. Each scale has 10 items, and the score range for each is from 10 to 50. Higher total values indicate higher level of positive affect and negative effect respectively.

In the prostrations, according to Tibetan Buddhist tradition, group. This questionnaire comprises 20 items and two independent dimensions: positive affect and negative effect. Each scale has 10 items, and the score range for each is from 10 to 50. Higher total values indicate higher level of positive affect and negative effect respectively.

In the prostrations, according to Tibetan Buddhist tradition, group. This questionnaire comprises 20 items and two independent dimensions: positive affect and negative effect. Each scale has 10 items, and the score range for each is from 10 to 50. Higher total values indicate higher level of positive affect and negative effect respectively.

In the Koan Mu, according to Zen Buddhist tradition, group. This questionnaire comprises 20 items and two independent dimensions: positive affect and negative effect. Each scale has 10 items, and the score range for each is from 10 to 50. Higher total values indicate higher level of positive affect and negative effect respectively.

In the Koan Mu, according to Zen Buddhist tradition, group. This questionnaire comprises 20 items and two independent dimensions: positive affect and negative effect. Each scale has 10 items, and the score range for each is from 10 to 50. Higher total values indicate higher level of positive affect and negative effect respectively.

In the Koan Mu, according to Zen Buddhist tradition, group. This questionnaire comprises 20 items and two independent dimensions: positive affect and negative effect. Each scale has 10 items, and the score range for each is from 10 to 50. Higher total values indicate higher level of positive affect and negative effect respectively.

In the Koan Mu, according to Zen Buddhist tradition, group. This questionnaire comprises 20 items and two independent dimensions: positive affect and negative effect. Each scale has 10 items, and the score range for each is from 10 to 50. Higher total values indicate higher level of positive affect and negative effect respectively.

In the mirror exercise, according to Toltec tradition, group. This questionnaire comprises 20 items and two independent dimensions: positive affect and negative effect. Each scale has 10 items, and the score range for each is from 10 to 50. Higher total values indicate higher level of positive affect and negative effect respectively.

In the mirror exercise, according to Toltec tradition, group. This questionnaire comprises 20 items and two independent dimensions: positive affect and negative effect. Each scale has 10 items, and the score range for each is from 10 to 50. Higher total values indicate higher level of positive affect and negative effect respectively.

In the mirror exercise, according to Toltec tradition, group. This questionnaire comprises 20 items and two independent dimensions: positive affect and negative effect. Each scale has 10 items, and the score range for each is from 10 to 50. Higher total values indicate higher level of positive affect and negative effect respectively.

In the mirror exercise, according to Toltec tradition, group. This questionnaire comprises 20 items and two independent dimensions: positive affect and negative effect. Each scale has 10 items, and the score range for each is from 10 to 50. Higher total values indicate higher level of positive affect and negative effect respectively.

In the mindful breathing group. The items are scored by measuring the millimeters from the low end of the scale to the subject's mark (integers from 0-100). Higher values indicate higher perception of an altered state of consciousness.

In the mindful breathing group. The items are scored by measuring the millimeters from the low end of the scale to the subject's mark (integers from 0-100). Higher values indicate higher perception of an altered state of consciousness.

In the mindful breathing group. The items are scored by measuring the millimeters from the low end of the scale to the subject's mark (integers from 0-100). Higher values indicate higher perception of an altered state of consciousness.

In the mindful breathing group. The items are scored by measuring the millimeters from the low end of the scale to the subject's mark (integers from 0-100). Higher values indicate higher perception of an altered state of consciousness.

In the prostrations, according to Tibetan Buddhist tradition, group. The items are scored by measuring the millimeters from the low end of the scale to the subject's mark (integers from 0-100). Higher values indicate higher perception of an altered state of consciousness.

In the prostrations, according to Tibetan Buddhist tradition, group. The items are scored by measuring the millimeters from the low end of the scale to the subject's mark (integers from 0-100). Higher values indicate higher perception of an altered state of consciousness.

In the prostrations, according to Tibetan Buddhist tradition, group. The items are scored by measuring the millimeters from the low end of the scale to the subject's mark (integers from 0-100). Higher values indicate higher perception of an altered state of consciousness.

In the prostrations, according to Tibetan Buddhist tradition, group. The items are scored by measuring the millimeters from the low end of the scale to the subject's mark (integers from 0-100). Higher values indicate higher perception of an altered state of consciousness.

In the Koan Mu, according to Zen Buddhist tradition, group. The items are scored by measuring the millimeters from the low end of the scale to the subject's mark (integers from 0-100). Higher values indicate higher perception of an altered state of consciousness.

In the Koan Mu, according to Zen Buddhist tradition, group. The items are scored by measuring the millimeters from the low end of the scale to the subject's mark (integers from 0-100). Higher values indicate higher perception of an altered state of consciousness.

In the Koan Mu, according to Zen Buddhist tradition, group. The items are scored by measuring the millimeters from the low end of the scale to the subject's mark (integers from 0-100). Higher values indicate higher perception of an altered state of consciousness.

In the Koan Mu, according to Zen Buddhist tradition, group. The items are scored by measuring the millimeters from the low end of the scale to the subject's mark (integers from 0-100). Higher values indicate higher perception of an altered state of consciousness.

In the mirror exercise, according to Toltec tradition, group. The items are scored by measuring the millimeters from the low end of the scale to the subject's mark (integers from 0-100). Higher values indicate higher perception of an altered state of consciousness.

In the mirror exercise, according to Toltec tradition, group. The items are scored by measuring the millimeters from the low end of the scale to the subject's mark (integers from 0-100). Higher values indicate higher perception of an altered state of consciousness.

In the mirror exercise, according to Toltec tradition, group. The items are scored by measuring the millimeters from the low end of the scale to the subject's mark (integers from 0-100). Higher values indicate higher perception of an altered state of consciousness.

In the mirror exercise, according to Toltec tradition, group. The items are scored by measuring the millimeters from the low end of the scale to the subject's mark (integers from 0-100). Higher values indicate higher perception of an altered state of consciousness.