Cui Panguan asked the Tang King (Emperor Taizong) to hold an amphibious meeting after he came back from the dead, so as to turn over the ghosts who have no masters, and also to liberate Li Shimin and lighten his guilt. (The author arranged this in order to lead to the story of Master Xuanzang's later opening of the scriptures. )

2. The reason why Master Xuanzang was chosen as the host of the "Land and Water Conference" is:

The King of the Tang Dynasty (Emperor Taizong) ordered local officials to recommend holy monks to preside over the land and water conference and turn over the dead. At first, Wei Zhi introduced Master Xuanzang, because Master Xuanzang was reincarnated as a golden cicada, with high moral character and proficient in Buddhist scriptures and dharma. Later, everyone elected Master Xuanzang to preside over the land and water conference.

Extended data

Master Xuanzang, surnamed Chen, is also called Tang Priest in the secular world. Tang Priest's previous life was Jin Chan, the second disciple of Tathagata. He was banished to the underworld by the Tathagata Buddha for doing something wrong. Under the guidance of Guanyin Bodhisattva, he went to Wan Li to learn Buddhist scriptures at the behest of Emperor Taizong.

Later, three apprentices, the Monkey King, Zhu Bajie and Sha Wujing, were accepted on the way, and they went through eighty-one difficulties along the way. Finally, I got the true sutra, returned to the Tang Dynasty, and made it a positive result, and was named "Tan Gongde Buddha" by the Tathagata Buddha.