Physicians, lawyers, and religious leaders have recently come up against the problem of so-called “mystical drugs,” which, according to our information, do not cause obvious harm to the body, but cause changes in consciousness comparable to the most sublime aesthetic and religious experiences. In this book, one of the leading researchers in the field of psychology of religion gives an objective assessment of these drugs, and also tells about his personal experiments with them. The descriptions of his experiences given by the author sound bright, poetic and contain valuable information about the changes taking place in the human consciousness. These changes encompass a wide range of experiences from glimpses of an aesthetic vision of nature to a philosophical vision of existence in the world as a comedy, both infernal and divine. At the same time, the researcher comes "not only to the cosmology of unity, but also to the cosmology of joy" .. The foreword to the book is written by Timothy Leary and Richard Alpert, formerly of Harvard University's Department of Psychology. The book is also strong in that it contains photographs of natural objects that complement the fascinating narrative.... Touching