This study will compare the effectiveness of the Masterful supportive care intervention with that of the non-faith-based active control supportive care intervention, which uses the American Cancer Society's patient education materials, for Muslim patients who have advanced cancers.

All 3 sessions may occur within one week or over multiple weeks (nonconsecutively), depending on the participants preference. The participant will have up to 12 weeks from recruitment to complete all sessions and follow up surveys.

Inclusion Criteria:

• ≥ 18 years of age
• identify, either as self-report or on the MSKCC EMR, as Muslim
• are in treatment including surveillance, for a confirmed diagnosis of stage III or IV cancer (solid or liquid) as per clinician or pathology report
• have an estimated life expectancy of at least 6 months, as determined by their primary oncologist
• are cognitively intact (oncologist's clinical impression or judgement of study staff)
• able to speak and read English or Arabic (self-reported preference or on the MSKCC EMR system).
• To assess English proficiency, participants will be asked two questions: (1) the Census limited English proficient item "How well do you speak English?" with response options "Not at all, Not well, Well, or Very well" and (2) "What is your preferred language for healthcare?"
• Participants who are eligible for the study and are fluent in English will be identified by the response "Very well" to the 1st question and a response indicating English as the preferred language for healthcare.

Exclusion Criteria:

• Major psychiatric illness or cognitive impairment that in the judgment of the study investigators or study staff would preclude study participation
• patients diagnosed with primary brain tumors as per clinician report, as they may have difficulty completing the intervention and answering the questionnaires
• undergoing hematopoietic stem cell transplantation (HSCT) as per clinican report or the EMR
• currently in psychotherapeutic treatment. Symptoms of anxiety and depression are common among patients with stage III or IV cancer. Antidepressants, anxiolytics, and other psychotropic medications do not diminish the effects of psychotherapy; thus we will not exclude patients who are being treated with these medications, as long as they are not in psychotherapy.

Memorial Sloan Kettering Cancer Center supports the international committee of medical journal editors (ICMJE) and the ethical obligation of responsible sharing of data from clinical trials. The protocol summary, a statistical summary, and informed consent form will be made available on clinicaltrials.gov when required as a condition of Federal awards, other agreements supporting the research and/or as otherwise required. Requests for deidentified individual participant data can be made beginning 12 months after publication and for up to 36 months post publication. Deidentified individual participant data reported in the manuscript will be shared under the terms of a Data Use Agreement and may only be used for approved proposals. Requests may be made to: crdatashare@mskcc.org.