This book represents the culmination of many years of research and teaching in the life work of Bruno and Louise Huber, well known as founders of the Astrological Psychology Institute in Zürich. This is the last of the eight volumes on their system of astrological psychology to be fully translated into English. From their researches the Hubers found that the causes of psychological problems are more often uncovered through the effort of spiritual development than through handling everyday conflicts. In this book they describe the related processes of transformation as natural stages in human development. This is concerned not only with the personal stages of development through life, but with the evolution of humanity and the whole universe. It involves the expansion of consciousness of micro- and macrocosm. It brings about meaningful and spiritual growth, which each person can joyfully and confidently undertake. Parts of this work have previously been published by Samuel Weiser under the title 'Astrology and the Spiritual Path', the translation of an earlier book by the Hubers. The present volume includes significant new material, notably in the areas of the Dynamic Quadrants, Stress Planets, the House Chart, and the Integration Chart.