In 1937, Teacher Omraam Mikael Aivankhov (1900-1986), a philosopher and teacher of Bulgarian origin, arrived in France. Although his writings cover numerous aspects of Initiatory Science, he elaborates: “The questions that arise before us will always be the same: to understand these beings that we are, to discover the meaning of our existence and to overcome the obstacles that stand in our way . So, don’t ask me to talk to you about other things, I will always return to these topics: our development, our difficulties, the path to be taken and the methods to go through it.” The teachings of Omraam Mikael Aivankhov were transmitted orally and include several thousand impromptu lectures and conversations, which were transcribed or recorded on audio or video tape. Books by O. M. Aivankhov are constantly published. Currently, more than 80 titles of books have been published in French, they have been translated into 30 languages of the world. The book of nature is open right in front of us, and we can read in it not only the wonders of eternal wisdom, which the Creator imprinted on every stone, in every flower, in every star, in every person, but He also gives us the means to solve the problems that confront us every day. The solution to the most difficult philosophical questions is in this book. Because both below and above, the laws are similar, the phenomenon of the physical plane always has its correspondence in the regions of the heart, mind, soul and spirit. “Everything that is below is like what is above, and everything that is above is like what is below, so that every thing may work wonders.” This principle, proclaimed by Hermes Trismegistus, is the key. And this key must not be allowed to rust! Omraam Mikael Aivankhov