Essays on the Main

Sketch style of presentation implies brevity and a possible variety of subject collections.
That’s it, gradually, chapter by chapter, and this book was created.
Its creator — known now in many countries a Russian biologist, the author of many books, translated into different languages, on the topics of ecology, spiritual philosophy, the methodology of spiritual development, including the art of psychic self-regulation.
The book will be useful to everyone who is interested in these topics.