In this, his culminating work, the leading international figure in consciousness research masterfully synthesizes his vast findings, drawing not only upon psychedelic therapy and Holotropic Breathwork, but also from literature, cross-cultural studies, ancient mystical sources and psychological data, resulting in a profound consolidation and articulation of what is now known about nonordinary states of consciousness.

The Cosmic Game discusses the broadest philosophical, metaphysical and spiritual insights gleaned in Grof's research concerning human nature and reality, addressing the most...