“Always seeking to open channels to new dimensions of consciousness and reach new heights of enlightenment, he spent a lot of time and money endearing himself to and worming his way into the trust of secretive tribal healers and shamans. Under their guidance, he experimented with all kinds of psychoactive substances and entheogens—mostly plant-derived concoctions that played a pivotal role in the religious practices of the tribal cultures he was exploring. He started with more easily accessible, local mind-altering substances like psilocybin mushrooms and Salvia divinorum, under the guidance of Mazatec shamans in the isolated cloud forests of the Sierra Mazateca, then he moved on to more obscure, and more intense, hallucinogens like ayahuasca, the vine of the soul; iboga, the sacred visionary root; borrachero; and others that few outsiders had ever been offered. He”