Zain K. K., author of more than 50 books and thousands of articles, was one of the outstanding astrologers of the 20th century. His main work - 21 courses of the Hermetic Sciences (astrology, alchemy and magic) - was written by him after many years of studying modern physics, astronomy and biology and ancient occult disciplines under the guidance of teachers from the Brotherhood of Light - one of the most influential esoteric schools. This volume presents the first two books of Zain, in which the reader will find the ideological foundations of Hermetic Philosophy - the doctrine of the origin and mission of the soul, about the invisible levels of the universe and the laws in force there, about the nature of astrological energies, about fundamental freedoms and human needs. The purpose of Zainov's training courses is not only to give a clear and holistic picture of our world, but also to show how ancient occult sciences can be practically applied to achieve success in earthly life and progress in spiritual life. Test questions for each chapter help to assimilate the material. The Russian translation is approved and approved by modern keepers and successors of the tradition of the Brotherhood of Light K. K. Zain.