The proposed book substantiates theoretical principles and presents experimental materials characterizing the possibilities of hypnosis as an adequate experimental method that allows the formation of given mental states (mental models of emotions, hyper- and hypo-gravity). For the first time in the literature, the results of experiments with the suggestion of an altered course of time are published. The theoretical and practical focus of the book is to substantiate the ways and methods of psychological training of the operator in order to increase the reliability of his professional activities. The book will be useful to psychologists, psychotherapists, and physicians who use hypnosis in studies of the human condition.