A pilgrim spinning their prayer wheels while doing the kora around the Jokhang Temple. "Om mani padme hum" repeated ad nauseam thousands of Tibetans in their tireless round the Jokhang Temple, the most famous Buddhist temples in Lhasa in Tibet, the spiritual center of the city. It is the area known as Barkor, the true heart of the city. While not leave say their mantras spinning their prayer wheels, always in the direction of clockwise.