Well, for insight I do a gram of LSD (I'm seriious here) and meditate for...well for however long it takes, erb however, I don't do it in groups as there are too many people saying 'man...good stuff' which if I was not stoned would be really irritating. I do it in the wild, with the guirlfreind or on my own...mostly at night...I have quiet thoughts and insights and I can appreciate a whole lot more stuff 'cuz I am not rolling along with trivial shit like who likes Britney.
Also, I do it late at night otherwise I can't be fagged to go to work or train...which is the only downside I suppose.