Summary: Yoga studios are cropping up on street corners across the U.S. Now there are yoga classes at YMCAs, law schools, and corporate headquarters. This 5000-year-old spiritual technology is converging intriguingly with 21st-century medical science and with many religious and philosophical perspectives. Seane Corn takes us inside the practicalities and power of yoga, and describes how it helps her face the darkness in herself and the world.
