All psychedelic explorers should be aware of the concept of what is called a cognitive hallucination. The is a much more insidious phenomenon. This is, quite simply, an out-and-out delusion.
Terence McKennaThereโs light at the end of the tunnel. The problem is that tunnel is in the back of your mind. And if you donโt go to the back side of your mind you will never see the light at the end of the tunnel. And once you see it, then the task becomes to empower it in yourself and other people. Spread it as a reality. God did not retire to the seventh heaven, God is some kind of lost continent IN the human mind.
Terence McKenna