An ancestor worship grand ceremony in honor of Emperor Yao, a legendary Chinese ruler, is held in Linfen, north China's Shanxi Province, June 11, 2018. (Xinhua/Yang Chenguang)

Performance is held during an ancestor worship grand ceremony in honor of Emperor Yao, a legendary Chinese ruler, in Linfen, north China's Shanxi Province, June 11, 2018. (Xinhua/Yang Chenguang)

A visitor takes a photo during an ancestor worship grand ceremony in honor of Emperor Yao, a legendary Chinese ruler, in Linfen, north China's Shanxi Province, June 11, 2018. (Xinhua/Yang Chenguang)

People attend an ancestor worship grand ceremony in honor of Emperor Yao, a legendary Chinese ruler, in Linfen, north China's Shanxi Province, June 11, 2018.(Xinhua/Yang Chenguang)

Actors perform during an ancestor worship grand ceremony in honor of Emperor Yao, a legendary Chinese ruler, in Linfen, north China's Shanxi Province, June 11, 2018. (Xinhua/Yang Chenguang)