People visit a giant thangka exhibition to mark the start of the annual Shoton Yogurt Festival on Friday in Lhasa. [Photo by Palden Nyima/chinadaily.com.cn]

A devout Tibetan Buddhist prays in front of the exhibition of giant thangka on the annual Shoton Yogurt Festival on Friday in Lhasa. [Photo by Palden Nyima/chinadaily.com.cn]

Tibetan Buddhists present money and khadaks, a white piece of silk, to Buddha and guests on Friday in Lhasa. [Photo by Palden Nyima/chinadaily.com.cn]

Tibetan Buddhists present money and khadaks, a white piece of silk, to Buddha and guests on Friday in Lhasa. [Photo by Palden Nyima/chinadaily.com.cn]