Spirituality and religion focus on understanding the meaning of life as well as the way in which this meaning can be influenced through a relation with a higher power. It is widely believed that religion and spirituality have a significant impact on human mental health. The role of religion and spirituality in psychotherapy has received increasing attention over the past decades. There have been various studies with a focus on understanding the ways that religion and spirituality relate to therapists and treatment methods. Many psychologists and psychotherapists have recently studied the relationship between religion, spirituality and mental health; or used religious interventions in psychotherapies. This book contains some path-breaking studies in the field of spirituality, religion and psychotherapy. From theories to research to practical applications, case studies related to all contemporary topics of relevance to this field have been included herein. Researchers and students actively engaged in this field will find this book full of crucial and unexplored concepts.