The holotropic mind : the three levels of human consciousness and how they shape our lives /
Grof, Stanislav,1931-
Bennett, Hal Zina,1936-
San Francisco, Calif. : HarperSanFrancisco,
c1992.
Includes bibliographical references (p. 223-229) and index.
Subconsciousness.
Consciousness.
Spirit.
Mysticism.