What is Yu's level of Zhouyi?

Have a strong level of Zhouyi. Yu was once known as the strongest qi in Taiwan Province, which shows that Yu has a strong level of Zhouyi. Zhouyi is one of the Book of Changes and three changes, and it is also one of the traditional classics. According to legend, it was written by Zhou Wenwang Jichang, and its contents include The Book of Changes and Biography. This answer is for reference only. Don't be blindly superstitious.