The book is written in a style that combines elements of science fiction fantasy and spiritualism. It describes the advanced technology and knowledge possessed by the Atlanteans including their ability to harness the power of the sun and their knowledge of advanced medical techniques. One of the key themes of the book is the idea of reincarnation and the transmigration of souls. Phylos the narrator claims to have been reincarnated multiple times and to have lived on other planets before coming t