Monks take part in a Buddhist ritual to celebrate the birthday of Bodhisattva Guanyin at Qiyuan Temple on Jiuhua Mountain, East China's Anhui province, April 7, 2015. Jiuhua Mountain, one of the four sacred mountains of Chinese Buddhism, ususally hold various Buddhist rituals and events on the birthday of Bodhisattva Guanyin, which falls on the 19th day of the second month in the lunar calender. [Photo/Xinhua]