Yongzhong Benjiao is a primitive Buddhism believed by the ancient Tibetan people and is called Benjiao. It originated from the ancient folk nature worship on the Qinghai-Tibet Plateau. This religion holds that the universe is divided into three areas: heaven, earth and underground. The gods who live in the three realms are called Zan, Nian and Lu respectively. In addition, there are all kinds of elves and monsters living underground and on the ground. People must be alert to these demons, and harmony will lead to disaster. Before Indian Buddhism was introduced into Tibetan areas, Yongzhong Benjiao was the dominant belief.