Just read Andre Breton's Manifeste du Surréalisme which is totally awesome:
One night, before falling asleep, I became aware of a most bizarre sentence, clearly articulated to the point where it was impossible to change a word of it, but still separate from the sound of any voice. It came to me bearing no trace of the events with which I was involved at that time, at least to my conscious knowledge. It seemed to me a highly insistent sentence - a sentence, I might say, which knocked at the window. I quickly took note of it and was prepared to disregard it when something about its whole character held me back. The sentence truly astounded me. Unfortunately I still cannot remember the exact words to this day, but it was something like: 'A man is cut in half by the window'; but it can only suffer from ambiguity, accompanied as it was by the feeble visual representation of a walking man cut in half by a window perpendicular to the axis of his body.