Alas, I have little knowledge of how one obtains such things (and as I'm posting under my full real name, that should not be construed as a request for advice). I once had a space cookie in Amsterdam, but the effect was no different from a glass of beer.

Besides, beer puts me to sleep, and I gather that pot does the same. Caffeine seems a better fit with meditation -- the story has it that coffee was first used by monks to stay awake, a monk having noticed how goats chewing the leaves of a certain bush became more frisky. Certainly you'd get more vibrations from a quad espresso than a pint of Owd Roger.