About the Book This book contains fifteen chapters. Chapters of this book may be considered as a set of Islamic guiding principles and spiritual ways for leading a healthy life and attaining a spiritual state. This book is concerned with the religious and spiritual aspects of behavior. This book is an attempt to integrate Islamic Theology into Psychology. It will provide new insights to the students of psychology and mental health professionals and benefit people in dealing with psychospiritual problems and behavior modification. The author of this book follows commonsense methodology to evolve and explain certain concepts like NAFSIAT, RELIGION, ISLAM, the QUR’AN, SPIRIT, JIHAD and PERSONALITY to facilitate positive behavior in Muslims that will help them veer from languishing to flourishing. This book follows a different style in writing which would capture the attention of the readers. Some of the new concepts based on acronym are presented in this book which may generate researches on the subject. As an author of this book, I can firmly say that this is a book on understanding religious and spiritual behavior and psychotherapy. This book can be prescribed to the students of psychology who will offer courses related to Islamic Psychology at the Master’s level. About the Athor Dr. Akbar Husain is Professor and Coordinator, UGC–SAP (DRS-I) at the Department of Psychology, Faculty of Social Sciences, Aligarh Muslim University, Aligarh. He received his Ph.D. Degree in Psychology from the Aligarh Muslim University, Aligarh (INDIA) in 1981.