This is a big failure in itself. The time for Taoist Wang to enter the Mogao Grottoes is about 1892. At that time, he was nearly 40 years old, and he saw that the sacred cave was deserted, broken and severely damaged by natural and man-made disasters. A strong sense of mission made him consciously and voluntarily undertake the important task of "patron saint". He ran around trying to persuade him to raise money and save it to clean up the accumulated sand in the cave. It took nearly two years to clean up the accumulated sand in Cave 16 alone. On May 26th, 26th year of Guangxu reign in Qing Dynasty (1June 22nd, 900), Wang unveiled the secret of the Tibetan Sutra Cave. After discovering this Tibetan Buddhist scripture cave, he went to various places to beg for government protection, but the Qing government at that time had already taken care of itself, and this matter naturally did not receive a response. It can be said that he is the digger and protector of Dunhuang cultural relics there and a hero of China.
However, he was disheartened and unable to protect the cultural relics, and then he sold them to others, leading to the outflow of national treasures. We have to say that he is also a sinner of history.