As ayahuasca tourism explodes into a frenzy of expensive retreats, gringo-shamanism, one-night love-ins, and do-it-yourself thrill-seeking across the planet – a shaman from the Amazon sends a postcard on which he writes, only this…. beware the kiss of the vine of death. If you were sick, I mean really – and abandoned on a sandbank in the Amazon -would … More The Bitter Cup: Ayahuasca – beware the hand that serves you