I don't believe consciousness is generated in the brain any more than television programs are made inside my TV. The box is too small.
Terence McKennaPsychedelic 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 'hard swallow' built into science is this business about the Big Bang. ... This is the notion that the universe, for no reason, sprang from nothing in a single instant. ... Notice that this is the limit test for credulity. . . . It's the limit case for likelihood.
Terence McKenna