The book is a fascinating account of a unique scientific study. For the first time in the history of science, Dr. Rick Strassman, MD, studied and described the effects of the psychedelic drug DMT (N,N-dimethyltryptamine) on human consciousness. This substance is found in plants that were used in traditional Indian cultures to enter an altered state of consciousness. In addition, DMT is produced by the pineal gland of the human brain during critical periods of his life (for example, at birth and death). To obtain official approval for this research, Strassman had to overcome numerous bureaucratic barriers: research on psychedelics was almost interrupted in 1970, when the US Congress passed a law banning LSD and other similar drugs. You will read about how the concept of the study was developed and how volunteers were recruited to administer the drug. The book contains many descriptions of the amazing experiences that volunteers experienced while under the influence of DMT. Finally, you will find out what conclusions Dr. Strassman came to - they amaze with their courage and revolutionary nature. A book for those who are interested in human psychology, ways of gaining spiritual experience, other worlds, comprehension of the laws of existence by immersing in the depths of their own consciousness.