The "Tianfa Shen Prophecy Monument" was erected in the first year of Wu Tianxi (276) on Yanshan Mountain in Jiangning, Jiangsu Province. It is also known as the "Tianxi Commemorative Ode". The inscription was written by Huang Xiang, and the font is neither seal script nor official script. The starting stroke is basically a square prism shape, and the closing stroke is mostly pointed. The turning points are sometimes round and sometimes square. The font is majestic and magnificent, showing the author's alternative artistic conception of calligraphy creation. Just as it is written in "Shu Shu Fu", the handwriting of Huang Xiang in the capital of Guangling is simple and ancient, and it is difficult for people to reach his level when imitating it. His handwriting is like a dragon's coil, vigorous and powerful.