When the four masters and disciples of Tang Monk arrived in the West, they originally thought that after obtaining the true scriptures, completing their tasks, and completing their merits, they could return to the Eastern Land of the Tang Dynasty, carry forward Buddhism, and be respected by all people. Unexpectedly, the Buddha smiled softly and made a more profound arrangement: "You don't have to go back along the original road. You should go west, and then go west again, and go around the land in a circle before you can return to the Eastern Land of the Tang Dynasty.
