Contents: The Chaldeans; Sketch of the History of Chaldean Astronomy and Its Influence Upon the Religion; Babylonia and Greece; Dissemination in the West; Power of Astrology; Hermetic Books; Israel and Astrology; The Oriental Mysteries; Theology; Sacred Numbers; The Sun as the Highest God; Development of Solar Theology; Astral Mysticism Ethics and Cult; Mystic Element in Astral Religion; Cosmic Emotion; Eschatology; Astral Mysticism as a Preparation for the Future Life; Principal Doctrines; Magic Processes.