The idea that we can now approach mystical states of consciousness with the tools of science is what gets Roland Griffiths out of bed in the morning. “As a scientific phenomenon, if you can create a condition in which 70 percent of people will say they have had one of the most meaningful experiences of their lives … well, as a scientist that’s just

He suggested that this “fascinating” class of drugs, and the spiritual experience they occasion, might prove useful in treating addiction.