The Deep Self by John C. Lilly

A vivid blend of memoir, experiment, and theory exploring human consciousness and techniques for accessing deeper layers of mind; the author recounts sensory-deprivation and floatation-tank work, psychedelic and isolation-induced experiences, and experiments in interspecies communication, using clinical detail and personal narrative to argue that systematic inner exploration—melding rigorous observation with open-minded speculation—can reveal new understandings of perception, selfhood, and the possibilities for integrating altered states into ordinary life.

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