This book will focus on the true mysteries of the human psyche. It will not contain stories about telepathy and clairvoyance, teleportation and psychokinesis, psychotronic weapons from the arsenal of special services and pervasive psi fields. We will talk about things much more prosaic, but no less interesting - about memory, intelligence and creative abilities of a person, about the nervous system and its connection with brain departments and mechanisms for memorizing information at the molecular level. The book is written in a natural science key on the central dogma of neuroscience, which says that all our mental activity is somehow a reflection of the processes occurring in brain structures.