Who is a mortal, who killed a dragon in his dream and lived for Li Shimin for twenty years?

In my dream, it was Wei Zhi who cut the dragon. This story should come from The Journey to the West, as an introduction for Tang Priest to learn from the scriptures. It means that a fortune teller suddenly became popular on the earth. The fortune-teller worked out how to fish and where to catch a lot of fish for a fisherman out of kindness. But fishermen are insatiable and catch too much, which destroys the ecology. Destroying the ecology is a great event in any era. Seeing the decrease of aquatic animals, King Jinghe went to the mortal world to make a bet on what he was good at. The fortune teller worked out when, where and how much it would rain.

Jinghe wanglong

The Dragon King of Jinghe received the will, but cheated and played tricks, deliberately raining less, and was punished by heaven. There is no other way to ask for help. I'll go to the fortune teller and ask the Dragon King to ask Li Shimin. Li Shimin promised to help the Dragon King, but Wei Zhi killed him in his dream. The Dragon King was unwilling, which led Li Shimin to visit the underworld, and the judge of the underworld advised him to do something. This paved the way for Emperor Taizong to send Tang Priest to learn from the scriptures.

Li Shimin

Although Wei Zhi was a mortal, it was common to deify the wise in ancient times. For example, Bao Zheng broke the human affairs during the day and the underworld affairs at night, and the top scholar Lang came down to earth, which was also a Cao Guan. He specializes in human affairs, so he was appointed as the Dragon King responsible for cutting many rivers.

Wei Zhi

King Jinghe, as the source of scriptures, felt wronged and did not seek a fortune teller. He didn't go to Wei Zhi, but this is the need of the plot. Although Wei Zhi has the right, how can he compare with the power of the king of a country? Only when Li Shimin realized the profound and enlightening function of Buddhism could Buddhism spread to the East. To promote Buddhism in China, send someone to learn from it. ?