About the book: year / If you are still asking yourself: “Where am I from?”, “Where did all this stuff come from?” – you cannot do without this book. If you are interested in the world in which you live, what it is like, you cannot do without this book. If you want to study Kabbalah or are at least interested in it, you cannot do without this book. If you have been studying Kabbalah for a long time or even already teach it yourself, you, again, cannot do without this book. “Introduction to the Science of Kabbalah” is the main article through which a person enters the world of Kabbalah. The greatest Kabbalist of all time, Rav Yehuda Leib Alevi Ashlag wrote this article as one of the prefaces to the Book of Zohar. Without mastering the material presented in this article, it is impossible to correctly understand a single word in the Book of Zohar. Without this book it is impossible to advance in Kabbalah. It is the key to all Kabbalistic literature: to the Talmud Eser Sefirot, the main modern Kabbalistic textbook, to the Book of Zohar, to the books of the Ari. She is the key to the door leading from our world to the spiritual world. For a long time I could not begin to translate and comment on it. True, my second book was an attempt to convey the basics of the structure of the universe. This was in 1983. But in recent years, an urgent need has arisen to publish a textbook in Russian on the basics of the birth, structure and correction of worlds and souls.