The first one is that Fu Xi subdued a figure like dragon head, horse body, a bristly countless whirlpool monster, according to the shape, people called dragon horse. Fu Xi found a strange pattern on dragon horse, after sixty-four days, he studied Eight Diagrams.

 Another one said Fu Xi created Eight Diagrams?in Guatai mount Tianshui city. Now there is Huaguatai on the mount, there is Longma mount across the river, and there is Longma cave on the mount. At that time, Fuxi had ever viewed the sky, and viewed the geography. Through perception to understand the natural world, then painted the Eight Diagrams?picture.

  The square which was mentioned by Ge Hong refers to today's Yuntai Mountain Cangxi county, (a small part belongs to Langzhong. Cangxi had ever under the jurisdiction of Langzhong, so some books said that the Yuntai mount in Langzhong, and some other books said that the Yuntai mount is in Cangxi).