"I 'have a friend' who did a few 'K' a few times in the 80's. It was very interesting - a bit like a colonic for the human energy system. However, John Lilly was actually quite *against* K by the end of his life. He said that K enables you to break the cosmic speed limit - do it a couple of times, no problem. Do it more often and you get busted by the 'cosmic traffic cops' and you could end up dead. He felt that it nearly killed him"