Originated from the sand and water of the Twenty-four Mountains in Li Xiangsheng through Yin and Yang. According to Teacher Yang Wu, the handed down manuscripts are only excerpts from some original manuscripts, which are not complete! The accuracy is 80%!
Golden lock Yutong is divided into two grades: small gold lock and big gold lock. The accuracy of Xiaojinsuo is as high as 87%, and only Dajinsuo Yutong can reach 100%.