The most amazing thing about Yuan Tiangang and Li in folklore is that they wrote TuiBei. What is a pushback graph? TuiBei Tu is regarded as the first wonderful book of China's prophecy. It is said that this book is a will, written by Li and Yuan Tiangang, two famous Taoist priests at that time. It is a collection of Yi-ology, astronomy, poetry, riddles, pictures and other miscellaneous studies. It is said that it not only calculated the national fortune of the Tang Dynasty, but also calculated the major historical events two thousand years later.
There are 60 hexagrams in this book. It is said that their night occupation combined with Zhouyi theory was calculated, and Li deduced to the point of obsession until the historical context developed thousands of years later. Then Yuan Tiangang gave him a push on the back and said, "The secret can't be revealed", so Li stopped performing. This is also the origin of the name of this book.
In ancient times, Liu Bowen was mythologized as being close to immortals. His most mysterious legend is that it is said that he made a prediction about "pancake song". The origin of this name is this. One day, when Zhu Yuanzhang was dealing with government affairs, he was eating baked wheat cakes. Then he heard the eunuch report that Liu Bowen had come to see the Holy One. He covered the sesame seed cake with a bowl and asked Liu Bowen what was in the bowl. Then Liu Bowen replied that it was baked wheat cake. Later, Zhu Yuanzhang asked him how the world events developed, and he made a poem. These songs are called "pancake songs".