 Nearly every day, Tibetan monks and nuns wearing blood-red robes arrive at this distant outpost after a long trek through a forbidding range of mountains. Drawn by word that a brilliant teacher resides here, they climb a twisting path up a narrow valley to find a freshly built metropolis of Buddhist worship. It is a stunning sight in an otherwise barren setting and a potent symbol of the revival in Tibetan Buddhism under way here.