C433 Promotion(1)

Wu Zhongyuan never made baseless guesses, he only made baseless deductions. This was also true. The Book of Heavenly Seal was the Nine Heavens Golden Letters. According to legend, the Nine Heavens Golden Letters was left behind by Fuxi and Nuwa. There were a total of nine pieces. They were divided into two sides of Yin and Yang, and they contained the profound mysteries of the heaven and earth