In this selection of seminal essays, drawn together into a single volume, Keiron Le Grice introduces archetypal cosmology, the academic field centered on the practice of archetypal astrology. Exploring its relationship to science and the modern worldview, its basis in the psychology of C. G. Jung, and its development in the twentieth century, Part One tackles the fundamental theoretical and empirical issues raised by astrology. Part Two illustrates how we can use archetypal astrology to better understand ourselves and the place of the unconscious psyche in human experience. Discussing the life and work of Jung, Nietzsche, and others, it shows how archetypal astrology can help to illuminate not only individual lives but also the evolution of religious consciousness and conceptions of the divine.