It is not unusual to break the valley to cure diseases. Many countries in the world treat diseases in this way. For example, there are "fast huts" in Japan, and "fast sanatoriums" in the United States, Europe and the former Soviet Union. China's ancient theory of "breaking the valley" is actually hunger therapy. Shi Qi, a cultural relic unearthed in Mawangdui, Changsha, is the earliest extant data of Bigu in China, which is written in the same book as Moxibustion Classic of Eleven Veins of Yin and Yang and Guide Map. This is one of the earliest documents that China can see. In ancient times, the word "Jun" had the same meaning as "taboo", so the so-called "taboo" means avoiding whole grains and not eating them. Historical Records compiled by Sima Qian also recorded the story of Sean, a strategist of Emperor Gaozu, who went down to the valley in his later years. It can be seen that keeping in good health through the valley has a long history in China. It is also quite popular among world religions. Many religions and religions are carried out under the banner of "seeing nature clearly" and "realizing the truth". For example, Sakyamuni, Jesus and Maud all had a few days to break through the valley. According to the records of enlightenment, Indian yoga also means breaking through the valley.