*The books of Alice A. Bailey, written in cooperation with a Tibetan teacher between 1919-1949, constitute a continuation of the Ageless Wisdom--a body of esoteric teaching handed down from ancient times in a form which is always suitable to each period. Intended to precede and condition the coming era, the Alice A. Bailey writings offer an unparalleled spiritual approach to such subjects as the teaching on Shamballa and the Path of spiritual evolution; the spiritual Hierarchy; the new discipleship and training in meditation as a form of service; the teaching on the seven rays and the new psychology of the soul; the teaching on esoteric astrology; and the new world religion, which emphasizes the common thread of truth linking all the major world faiths. Five volumes have been written under the overall title of A Treatise on the Seven Rays. This sequence of books is based on the fact, the nature and the quality of the seven basic streams of energy pervading our solar system, our planet and all that lives and moves within its orbit. Of the specialised subjects presented in these books, two volumes are concerned with esoteric psychology - the first in relation to basic energy patterns and structures; the second particularly applied to the soul and the personality of man and to the working out of the Plan for humanity. Psychology, defined in Webster's Dictionary as the science of mind, was at one time considered a branch of metaphysics. Today we are more inclined to include all the conditioning subjective factors as psychological in nature - mental and emotional impulses and soul contact, to whatever degree it exists. These subjective influences constitute the whole psychological background to a man's attitudes and behaviour, and create the faculty of spiritual response. The psyche is, after all, the human soul, the centre of consciousness. Esoteric psychology begins with a consideration of the human being as a soul, manifesting in the form of a personality, consisting of mental, emotional and etheric/physical substance, and more or less in contact and control, depending on the stage of evolution in the personality consciousness. From the point of view of esoteric psychology, evolution is the evolution of consciousness, by which the imbedded fragment of the soul within the personality progressively identifies its spiritual source and becomes at-one with it. The seven differentiated streams of ray energy play a significant role in this evolutionary process. A blend of five energies in a human being determine his goals, his problems, his available qualities and energy resources, and the correct method by which - according to his dominant ray influence - he may unfold his consciousness and make spiritual progress. In this Volume I of Esoteric Psychology, many of these distinctive ray qualities and methods are given as quotations, or interpretations, of The Old Commentary that have been put into poetic and symbolic words. The seven rays are shown as the Seven Creative Builders, each one imbued with purpose and power, functioning together as a synthesis in occult obedience to the purposes of our Solar Logos. Such a detailed and comprehensive study of the ray energies influencing our planetary life and all kingdoms in nature is of inestimable value to the aspirant consciously preparing himself to become of planetary service as he learns to serve and to unite with his fellowmen.