This book is an introduction to Spiritual Psychology which is based on the Seven Rays. It is an in-depth and comprehensive presentation of the "path of the soul" and the true nature of the human being. The special feature is the synthetic view of the different aspects of human life, such as the monad, the soul, the personality, the seven chakras, the seven planes, the path of initiation, the causal body, but also the practice of spiritual therapy and meditation. The author describes in a clear and easily comprehensible language the basics of Ageless Wisdom and the complex relationship between the spiritual and material worlds, in the duality of which soul development takes place. Complete with many diagrams and tables, it is a valuable textbook for astrologers and people in psychological, peda-gogical, counselling and healing professions who wish to expand their view of humanity and assist those who are seeking advice on their spiritual path of development.