How to deeply analyze Yuan Shoucheng?

Yuan Shoucheng, a warlock in the Tang Dynasty, was Yuan Tiangang's uncle. In The Journey to the West's ninth "Yuan Shoucheng's Unselfish Music", there is a description of Yuan Shoucheng, describing that he was born "grotesque and beautiful", knowing before and after, and was good at breaking Yin and Yang.

Because he could figure out the location of the Weihe aquarium and let fisherman Zhang figure out when he could catch fish, King Jinghe was very angry and scared, so he went to Chang 'an to find trouble and asked him to calculate the time of rain.

Yuan Shoucheng was right. The Dragon King of Jinghe River thought a very, very stupid idea, and changed the hours of rain privately, and the result was known by the Jade Emperor. Violate dogma. Wei Zhi was beheaded in his dream.

In the 13th year of Tang Zhenguan, there was a divination teacher named Yuan Shoucheng in Chang 'an, who was a fortune teller. It is said that he knows Yin and Yang and can tell the difference between life and death. This man's background is not simple. He was the uncle of Yuan Tiangang, the imperial supervisor of Qin Dynasty, and Yuan Tiangang, a famous astrologer in Tang Dynasty, invented the fortune-telling method that has been passed down to this day.