The experiences associated with death were seen as visits to important dimensions of reality that deserved to be experienced, studied, and carefully mapped.

LSD is a catalyst or amplifier of mental processes. If properly used it could become something like the microscope or telescope of psychiatry.

The human psyche shows that each individual is an extension of all of existence.

We have to recognize that spirituality is a legitimate dimension in the psyche. It's a legitimate dimension in the universal scheme of things. It doesn't mean that you are superstitious, that you are in to magical, primitive thinking, if you take spirituality seriously.

I read Freud's Introductory Lectures in Psychoanalysis in basically one sitting. I decided to enroll in medical school. It was almost like a conversion experience.

LSD was not a pharmacological agent generating exotic experiences by its interaction with the neurophysiological processes in the brain. This remarkable substance was clearly an unspecific catalyst of the deep dynamics of the human psyche. The experiences induced by it were not neurochemical artifacts, symptoms of a toxic psychosis as mainstream psychiatrists called it, but genuine manifestations of the human psyche itself.

Spiritual intelligence is the capacity to conduct our life in such a way that it reflects deep philosophical and metaphysical understanding of reality and of ourselves discovered through personal experience during systematic spiritual pursuit.