In this revised edition the book sets out to define the psyche and its place and purpose in the Universe. Using the kabbalistic and modern models it traces the origins of humanity in the Divine Scheme. Then comes a detailed account of incarnation, gestation and birth, followed by the individual's physical and psychological development and the various processes of the mind. These include its negative aspects such as possession. As the ego, Self, individuation and collective levels are set out so the issues of fate, destiny and spiritual evolution are explored, leading to the Path of Inner Ascent to the Divine Realm. The many pictures and new diagrams enhance the exposition and will illuminate both old and new ideas about the psyche.