The dictionary, which includes more than two and a half thousand articles, highlights the main problems, concepts and terms of esoteric philosophy, occultism and religious-mythological systems, gives a panorama of the history of the development of Eastern and Western "mystery studies." A large number of articles are devoted to prominent philosophers, theorists and ascetics of esotericism, founders and reformers of religious and philosophical movements, schools and orders, as well as mythological characters. Particular attention is paid to the foundations of Vedic religious philosophy. Intended for the attention of all students and interested in the problems of esoteric philosophy.