Introduction to the stone sculpture of a sitting dragon: There is a sitting dragon on the left and right of the front and back doors of each stele tower, only Yongling has the only one. As the symbol of the "Emperor" in feudal society, the dragon was everywhere in the palace and the emperor's bedchamber. Dogs are revered by the ancestors of the Manchu people, and dragons are the totems of the Chinese nation. It is a legend that dogs once saved Nurhachi's life. However, by combining the dragon and the dog, the sitting dragon was born. This dragon with national characteristics was used to symbolize the ancestors of the Qing Dynasty. As an idol in sacrifices, the sitting dragon implies to people that the Qing Dynasty can both conquer the world and sit on it.