Psychedelic drugs, especially psilocybin, allow a searchlight to be thrown on these deeper levels of the psyche, as Jung correctly stated. But it is not a museum of archetypes or psychic constructs, as he seemed to assume. It is a frontier of wholeness into which any person, so motivated and so courageous as to wish to do it, can go and leave the mundane plane far behind.
Terence McKennaThe word 'self' is as great a mystery as the word 'other'. It's just a polarity between two mysteries.
Terence McKennaAlthough whenever you have intelligent life in the presence of large explosions, a safe bet is that the intelligent life is responsible for the large explosion.
Terence McKennaAt still higher doses psilocybin triggers this activity in the language-forming capacity of the brain that manifests as song and vision. Psilocybin may have synergized the emergence of higher forms of psychic organization out of primitive protohuman animals. It can be seen as a kind of evolutionary enzyme, or evolutionary catalyst.
Terence McKenna