Pilgrims and believers gather around the Jokhang Temple to celebrate the Butter Lamp Festival in the heart of Lhasa, capital of southwest China's Tibet Autonomous Region, Dec. 23, 2016. Tibetans lit butter lamps and prayed through the night in an annual festival commemorating Tsong Khapa, a master of Tibetan Buddhism. (Xinhua/Purbu Zhaxi)
