The researcher whose work was the basis for two Hollywood movies recounts his efforts at communication with dolphins and his work with consciousness research, detailing how this has led to his radical spiritual transformation
John Cunningham Lilly was an American physician, neuroscientist, psychoanalyst, psychonaut, philosopher, writer and inventor.
He was a researcher of the nature of consciousness using mainly isolation tanks, dolphin communication, and psychedelic drugs, sometimes in combination.
If you've ever seen the movie "Altered States", it was loosely based on this guy. Very loosely. This is a fun book about a scientist who's also a little nutty.