A multidisciplinary guideline on religion, spirituality (R/S), and psychiatry aims to address: (1) organising R/S consultation in mental health care, (2) categorising research findings, and (3) professionalism and education with respect to R/S. Contents are derived from brainstorm sessions with key participants in the field of R/S and psychiatry in the Netherlands, and from the position statements on R/S and psychiatry in the UK and by the World Psychiatric Association. The following chapters are proposed: (1) ethical and existential themes and R/S, (2) R/S in stages of mental health care practice, (3) R/S counselling, (4) collaboration, and (5) relationship to other guidelines. The core themes need verification by specialists in the field, nurses, therapists, counsellors, patientpractitioners, and psychiatrists. The author recommends to approach R/S in an easy way, to listen to matters of personal meaning, and to leave the task to others in case of a lack of affinity. ARTICLE HISTORY