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.