Fooling version:
Chen Xuanzang had a dream!
He dreamed of the world a thousand years later. He seemed to have spent his whole life in that world and witnessed too many complaints. In order to wash away the resentments in people's hearts and promote the orthodoxy of Buddhism, he decided to go down the mountain and go to the west to pray to Buddha and seek scriptures!
Actual version:
Tired of eating and chanting Buddha every day in the temple, and knowing clearly the entire plot of Journey to the West, and thinking that he could have apprentices to serve him, and that he could discuss Buddhism with fairies from time to time, Chen Xuanzang resolutely embarked on the road of enjoyment heading west!