The area around the old city of Mengjin in the northeast of Luoyang, Henan, was a place rich in water and grass in ancient times. Legend has it that a monster once appeared in Tuhe in ancient times. It has a head like a dragon, a body like a horse, and its mane is curled into countless whirlpools. People call it dragon horse according to its shape. It is said that this dragon horse was transformed from a dragon in the water and is extremely ferocious. Its arrival caused floods in nearby areas, destroyed crops, and made it impossible for people to survive.
When people were in a critical moment of life and death, Fuxi rode six dragons to subdue the dragon and horse. Strangely enough, Ryoma immediately became docile and kind. Later, Zhang Xi studied carefully based on the whirlpool on the dragon and horse. After sitting for eighty-eight sixty-four days, he finally developed the Bagua diagram. "The dragon and horse serve the purpose of heaven and earth, and Tuhe wins the hearts of saints first." In order to commemorate Fuxi and Longma, later generations built a temple called Negative Tu Temple. In front of the temple, two large steles were erected, with the words "The old road of Tuhe" and "Longma" engraved on them. Negative picture".
