The book "The Substance of the Human Body in the Mysteries of the Finno-Hungarian Peoples: A Thai Cappsychological Study" by the well-known author Albert Hämeläinen reveals a unique view of the folklore and magical psychology of traditional peoples. The book explores the relationship between the physiology of the body and the energy processes that take place in the mysterious world of the Finno-Hungarian ethnic groups. The author analyzes in detail various aspects of the sacrament, revealing their role in the everyday life and worldview of these peoples. This book is a valuable contribution to the study of the natural and cultural characteristics of the Finno-Hungarian peoples and presents an interesting psychological approach to the study of folklore and magic.