Religion and spirituality (R/S) have been influential in societies' history, daily life, and identity in the past and in today's society. From a sociological perspective, R/S contributes to family development and organization, influences culture, and often contributes to forming opinions, beliefs, and concepts about oneself, family, society, and the world. In addition, R/S help shape individuals, families, and communities' ethical and moral understanding, thus influencing their behavior. This review article aims to provide the clinician with tools to understand, assess, and provide interventions that consider the patients' and their families' R/S. A recent review of the topic focused on general aspects of the R/S but we are unaware of reviews that integrate attachment, moral foundation theory, and forgiveness. This review will integrate these additional features into our understanding of the role of R/S in the delivery of mental health.