Lattin examines the lives and times of four men--Timothy Leary, Richard Alpert (aka Ram Dass), Andrew Weil, and Huston Smith--whose paths crossed in the 1960s at Harvard, and who consequently launched the mind, body, spirit movement.

""It was not the Baby Boomers who ushered in the first era of widespread drug experimentation. It was their parents." Far from the repressed traditionalists they are often painted as, the generation that survived the second World War emerged with a profoundly ambitious sense of social experimentation. In the '40s and '50s, transformative drugs rapidly entered mainstream culture, where they were not only legal, but openly celebrated. American physician...