In palliative care, a biopsychosocial-spiritual model is essential to address the patient in totality. Spirituality is often a relevant issue in such settings, yet there is a need to differentiate spirituality from religion. Spirituality in palliative care focuses on the psychological and spiritual aspects of care, helping to relieve the physical, emotional, social and spiritual distresses of the patient, family members and healthcare professionals, produced in such conditions. Psychologists, according to their ethical responsibilities, may include the assessment of their patients' spiritual needs in therapy, as it will help to identify the patients' values, belief systems, spiritual history, distress and needs. All patients have different needs, some may need religious/spiritual guidance, in collaboration with spiritual care workers, and others may not demonstrate needs regarding these issues. The essential is that each patient is treated as a 'whole', addressing his physical, psychological, social and spiritual needs.