The masters and disciples of Tang Monk took the Mahayana scriptures back to the east, returned to Lingshan to pay the decree, and they all achieved enlightenment. The Tathagata also ordered the four sons to go to the Tang Dynasty to spread the true scriptures and promote Buddhism. But it was said that Li Shimin's wind disease recurred in his later years and could not be cured after long-term treatment. At that time, the Taibai Jingtian image was seen in the sky above the Xuanwu Gate, so he secretly ordered Li Chunfeng, the Grand Historian, to predict the fate of the country and write "Tui Bei Tu". The sentence "After observing the empty form of King Kong, I once again entered the imperial palace." This aroused Li Shimin's suspicion, and the undercurrent of the dispute between Buddhism and Taoism was surging. In the prosperous Chang'an, all kinds of magical powers were gradually revealed, and the forces behind it were gradually revealed, involving the story of Journey to the West from ancient times to the present.