The book sheds light on the possible development of a person and their stages, the reasons for human suffering, and the specifics of interacting with the Higher. The author debunks a number of incorrect interpretations of key concepts related to spiritual growth, offering readers a new understanding of the realities of a person’s inner world. This edition may be useful to everyone who wants to explore the finer, deeper nuances of the path of personal improvement, who wishes to discover the true, uncorrupted meaning of those fundamental categories that form the basis of spiritual science.