Western science never observed prana, or even confirmed that it exists. But in 1970, a group of physicists took a stab at measuring its effects when a man named Swami Rama walked into the Menninger Clinic in Topeka, Kansas, the largest psychiatric training center in the country at the time. Rama was wearing a flowing white robe, a mala bead necklace, and sandals, and had hair that drooped down past his shoulders.

