Aobao introduction: On the vast Xilin Gol grassland, you can often see huge stone piles accumulated with large and small stones, with willow branches inserted on them. This is called a sacred tree, and colorful flowers are inserted on the sacred tree. Divine banner. Huge piles of stones stand on the grassland, and bright sacred flags are like arms calling to the herdsmen in the distance. This is the Mongolian Aobao. Every time the herdsmen pass by Obo, they have to put a few stones on it; every time guests arrive at Obo, they usually wrap it three times clockwise according to Mongolian custom, and at the same time make a wish in their hearts, and add stones to Obo to fulfill their wishes. be compensated. Generally, 3, 6, or 9 stones are thrown, and the symbols are six or six, good luck or good luck, etc.