Launching his book on the Buddhist Perfection of Wisdom tradition, Sangharakshita explores the crucial principle of hierarchy in Buddhism, in particular the hierarchy of the spirit and of awareness.This leads into a discussion of the difference between jnana, or awareness of things as they really are, and vijnana, or awareness of things only as they appear to be; an understanding of which constitutes the greatest task facing Buddhists in the west today.This is Sangharakshita at his most relaxed and systematic; a talk packed with ideas, delivered in a friendly and accessible way.