First, the book of Hutuluo was finally re-edited into Hong Fan by Dayu. The river map was copied by Fuxi according to the Book of Changes, and then he drew eight diagrams. Then he deduced sixty-four hexagrams. Fuxi mainly made this river map because he wanted to reveal the truth of the operation of heaven and earth one step ahead of others. Luo Shu refers to the later adaptation of Dayu, as long as it refers to what Dayu's father also did.
Second, Dayu went out of the house three times to try to control the flood and saved the people all over the world. Of course, the beast of the flood is also difficult to deal with. Therefore, in order to control the flood, Dayu passed by his door three times and didn't have time to take a look at his wife and children. Therefore, it is difficult for Dayu to control the flood. When Dayu successfully controlled the flood, Shun Di made him emperor to make way for himself. After Dayu proclaimed himself emperor.
Hutuluo is actually an interpretation of Dayu's wisdom. Through adaptation, the book of Hutuluo is endowed with new connotation, and many new elements are added to the previous book of Hutuluo. This is the confused Luo Shu, a book that embodies the wisdom of Dayu. Perhaps in ancient times, human wisdom was not fully developed. Dayu succeeded in controlling water and saved many people.