Lamas of Labrang Monastery attend a display ritual of a huge thangka painting of the Buddha in Xiahe County, northwest China's Gansu Province, Feb. 28, 2018. Labrang Monastery is one of the six great temples of the Gelug Sect of Tibetan Buddhism. The annual display of Buddha thangka, a Tibetan Buddhist scroll painting, in Labrang Monastery is a Tibetan Buddhism traditional praying for a good year. [Photo/Xinhua]

Lamas of Labrang Monastery unfold a huge thangka painting of the Buddha for a display ritual in Xiahe County, northwest China's Gansu Province, Feb. 28, 2018. Labrang Monastery is one of the six great temples of the Gelug Sect of Tibetan Buddhism. The annual display of Buddha thangka, a Tibetan Buddhist scroll painting, in Labrang Monastery is a Tibetan Buddhism traditional praying for a good year. [Photo/Xinhua]

Lamas of Labrang Monastery attend a display ritual of a huge thangka painting of the Buddha in Xiahe County, northwest China's Gansu Province, Feb. 28, 2018. Labrang Monastery is one of the six great temples of the Gelug Sect of Tibetan Buddhism. The annual display of Buddha thangka, a Tibetan Buddhist scroll painting, in Labrang Monastery is a Tibetan Buddhism traditional praying for a good year. [Photo/Xinhua]

People attend a ritual held by the Labrang Monastery to display a huge thangka painting of the Buddha in Xiahe County, northwest China's Gansu Province, Feb. 28, 2018. Labrang Monastery is one of the six great temples of the Gelug Sect of Tibetan Buddhism. The annual display of Buddha thangka, a Tibetan Buddhist scroll painting, in Labrang Monastery is a Tibetan Buddhism traditional praying for a good year. [Photo/Xinhua]

Lamas of Labrang Monastery carry a huge thangka painting of the Buddha to a hillside for a display ritual in Xiahe County, northwest China's Gansu Province, Feb. 28, 2018. Labrang Monastery is one of the six great temples of the Gelug Sect of Tibetan Buddhism. The annual display of Buddha thangka, a Tibetan Buddhist scroll painting, in Labrang Monastery is a Tibetan Buddhism traditional praying for a good year. [Photo/Xinhua]

Lamas of Labrang Monastery carry a huge thangka painting of the Buddha to leave a hillside following a display ritual in Xiahe County, northwest China's Gansu Province, Feb. 28, 2018. Labrang Monastery is one of the six great temples of the Gelug Sect of Tibetan Buddhism. The annual display of Buddha thangka, a Tibetan Buddhist scroll painting, in Labrang Monastery is a Tibetan Buddhism traditional praying for a good year. [Photo/Xinhua]