I have once..i was clean for about 5 weeks, then smoked two fat bowls of some dank with my friend.

I was sitting on the couch in this basement, it was hard to breathe (at a party..there were like 20 sweaty people in a 20x20 basement..) and in the air in front of me was this design, a black and white diamond, with the white parts flashing red blue and green. Saw this bridge start coming out of my water bottle too. Other real crazy shit happened..a kid in a pink shirt walked by, and the pink swooped off of his shirt into my mouth. Highest i've ever been, it was slightly uncomfortable. I believe it's akin to a shroom trip (haven't had the chance yet :-/).

Believe me or not, but 'struth. Try it some time. The 5 weeks is the fucking hard part though.