Religion can be defined as adherence to a belief system and practices associated with a tradition in which there is agreement about what is believed and practiced whereas spirituality can be defined as a more general feeling of closeness and connectedness to the sacred. In recent years psychotherapists have been trying to incorporate both - where appropriate and where the patient wants it - into psychotherapy. A team of researchers from Virginia Commonwealth University reviewed 46 studies, covering a total of 3,290 people, into the effectiveness of 'religious accommodative' and 'nonreligious spirituality' therapies. They found that patients receiving these therapies showed greater improvements in psychological and spiritual outcomes than those receiving alternative secular therapies.
Worthington, Everett L. ... [et al] - Religion and Spirituality Journal of clinical psychology: in session 67(2), 1--11