""An Essay On The Fundamental Principles Of Operative Occultism"" by Manly P. Hall is a comprehensive exploration of the principles and practices of occultism. The book delves into the esoteric knowledge and practices of the ancient mystery schools, discussing topics such as the nature of reality, the power of thought, the role of symbolism, and the use of ritual and meditation. Hall draws upon a wide range of sources, including ancient texts, modern philosophy, and his own personal experiences, to provide a detailed and insightful examination of occultism. This book is a valuable resource for anyone interested in the study of esoteric knowledge and the practice of occultism.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.