"Visions," "voices from above," ecstatic states, stigmas and other unusual phenomena of the human psyche have long been a source of superstitious ideas. Unable to explain them, people attributed them to miracles that are supposedly inaccessible to the human mind. In the book of the candidate of medical sciences V.I. Lebedev talks about how modern science reveals the psychophysiological mechanism of these phenomena, tears off the mystical cover from them, frees them from superstitions. The book is designed for the widest circle of readers.