Hmmm. I dont think these events are that exclusive, they take pre-existing things like spiritual exploration, and introduce it to the dance culture (something which occurs in raves anyway). I bet they are willing to have anyone come aboard who wants to give it a go, without drugs. I think its a good thing, since it may lead to raves being accepted by mainstream culture as a good way to have fun. Too many anti-rave laws and other junk, when its all about the music.