Terence McKenna Rock n the Chip Glasses

Terence McKenna advocated the exploration of altered states of mind via the ingestion of naturally occurring psychedelic substances. Although he avoided giving his allegiance to any one interpretation (part of his rejection of monotheism), he was open to the idea of psychedelics as being "trans-dimensional travel"; literally, enabling an individual to encounter what could be aliens, ancestors, or spirits of earth. He remained opposed to most forms of organized religion or guru-based forms of spiritual awakening.

Terence Mckenna - Our Last Chance

It's clearly a crisis of two things: of consciousness and conditioning. These are the two things that the psychedelics attack. We have the technological power, the engineering skills to save our planet, to cure disease, to feed the hungry, to end war; But we lack the intellectual vision, the ability to change our minds. We must decondition ourselves from 10,000 years of bad behavior. And, it's not easy.-Terence Mckenna