The use of drugs like mescaline may serve an appropriate purpose. Indeed, "Psychedelic" drugs have been widely used in the spiritual traditions of the world, including the Yoga of Patanjali, though they were never advertised as ultimate keys to enlightenment, merely as stepping-stones on the spiritual path.
Georg FeuersteinPsychedelic drugs undoubtedly open the doors to the mind's panopticon, but what we see in the mental mirrors are mere distortions of reality, not reality itself.
Georg Feuerstein