In the popular imagination, Tibet is a land of snow-capped mountains and sweeping vistas, fluttering prayer flags, crystal blue skies, saffron-robed monks spinning prayer wheels, and, perhaps most of all, timelessness. And likewise, the Dalai Lama, the spiritual leader of Tibet and its chief emissary to the West, is a man of abiding wisdom and compassion, an inspiration and moral compass, a beacon of calm in a frenetic modern world. Set aside the fraught politics of this contested region. If one word sums up what Tibet means to the West it is this: purity.