This book strives to simplify the Eastern philosophical concepts and expose their reality in light of the Islamic context, while matching them with their equivalent contemporary names and terms found in modern training and recovery programs. The goal is to make this study a reference point guiding those who are interested in such programs. It should also help researchers, scholars, and preachers to enable them to assess them properly and carry out the obligation of enjoining good and forbidding evil regarding them so that people's religion would remain intact and they could lead a better life in accordance with the methodology pleasing to Allah.