Introduction to Mozi Spring: There is an ancient cave about 10 meters deep downstairs in Kuangguan. There is a pool of spring water at the bottom of the cave. The bottom of the water is covered with flowers, rocks and rubble. This is the "Mozi Spring" among the five springs. Believing men and good women often get into the cave and grope in the spring water with their hands. If they touch the stones, they will get a boy, and if they touch the tiles, they will get a girl. Liu Erxin once wrote a couplet at the door of the cave, mocking this superstitious behavior as "confusion". The foolish ones brought the Buddha's feet and asked them to be their parents; the plain ones took the stones and said they were their children and grandchildren."