Ralph Metzner, Ph.D.

Ralph Metzner (1936–2019) obtained his Ph.D. in Clinical Psychology at Harvard University, where he collaborated with Timothy Leary and Richard Alpert on psychedelic research. He was Professor Emeritus at the California Institute of Integral Studies in San Francisco and president and co-founder of the Green Earth Foundation. Dr. Metzner is the author of numerous books, including Overtones and Undercurrents, Searching for the Philosophers’ Stone, and Green Psychology.

Books By Ralph Metzner, Ph.D.

Green Psychology

By Ralph Metzner, Ph.D.

The idea of domination over nature has led to an unprecedented destruction of the very systems which support us. Ralph Metzner explores the history of this global pathology and shows that disciplines such as deep ecology and ecofeminism are creating a worldview in which the mind of humanity and the health of the Earth may be harmoniously intertwined.

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The Ayahuasca Experience

Edited By Ralph Metzner, Ph.D.

Ayahuasca has been used by native Indian and mestizo shamans for thousands of years. Made from the vine Banisteriopsis caapi and the DMT-laden leaf of Psychotria viridis, ayahuasca is regarded as the embodiment of intelligent plant beings who offer spiritual teachings and healing to those who respectfully engage with them. With contributions from Dennis J. McKenna, Charles S. Grob, and J. C. Calloway, among others.

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Sacred Mushroom of Visions: Teonanácatl

Edited By Ralph Metzner, Ph.D.

Sacred Mushroom of Visions: Teonanácatl describes the experiences of psychoactive mushroom users and how the use of the psilocybe mushroom spread from Mexico to North America, Asia, and Europe. Firsthand accounts of the controversial Harvard Psilocybin Project, the use of psilocybin in psychotherapy, and studies on the treatment of obsessive compulsive disorder (OCD) are provided.

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Overtones and Undercurrents

By Ralph Metzner, Ph.D.

Pioneering transpersonal psychotherapist Ralph Metzner shares case histories from more than 50 years of practice. They include a wide spectrum of practices, such as the use of quiet meditative retreat, guided regressions, as well as imagery visualizations amplified by entheogens.

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Searching for the Philosophers’ Stone

By Ralph Metzner, Ph.D.

Through captivating stories, respected psychedelic elder Ralph Metzner, Ph.D., shares his encounters from the 1960s onward with mystics, animal guides, plant spirits like iboga and ayahuasca, genius scientists, and shamanic healers, including Albert Hofmann, Alexander Shulgin, the McKenna brothers, Myron Stolaroff, Leo Zeff, and Hawaiian healer Morrnah Simeona.

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$6.00

Maps of Consciousness

By Ralph Metzner, Ph.D.

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A classic guide to expanding perception and consciousness development

In this highly acclaimed classic, psychedelic elder Ralph Metzner presents a guide to six ancient systems, once known only to the initiated few, to expand awareness and free your consciousness from exterior limitations and cultural conditioning. He explores the I Ching, Tantra, Tarot, astrology, alchemy, and the yoga philosophy of Actualism.

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