Jill Bolte Taylor's brain talk at TED
3 letters. Wow.
http://www.ted.com/talks/view/id/229
Jill describes the experience of having a stroke - which is remarkably similar to a mushroom/acid trip (if not the same thing) - but from the perspective of a brain scientist who understands what is happening to her brain chemistry as it's happening. The stroke was on her left brain, which released her for a few hours to experience the world with right brain only. A remarkable and moving description of being at one with the world - as escaping the individual - as living in pure image.