"Digging the ancient" means "breaking the valley". It is said that not eating grains, a practice of Taoism, generally means not eating. "Pigu" originated from "not eating grains" in Taoist health preservation, and it was a common way of health preservation in ancient times.
Mr. Zhai Weichuan was born on 1942 1 month1day in Guangfu Town, Yongnian County, Hebei Province, the birthplace of Yang