What's popularly known as the evolution of consciousness, in other words that the expansion of cognitive repertoire that occurs in human beings, which has always been a great puzzle to evolutionary theory, I believe, occurred in the presence of a kind of catalyst for the human imagination.
Terence McKennaThere is this persistent theme in all of these notions that death is made more easy, whatever that means, if you've learned the territory before you get there. And you know, in the Mahayana Buddhist situation it even becomes as extreme as saying; 'life is essentially a preparation for death, a studying of the maps of a learning of the skills a packing of your picnic basket so that when you get out there and demons are sniffing you up one side and down the other you don't bungle your mantras'.
Terence McKenna