The pinyin of "Gu Dao" is gǔdào, which is a Chinese word, meaning the recipe of ancient alchemists for immortality. Posterior orifice, that is, the part from rectum to anus. Source: Historical Records Biography of Xiaowu: "Li sometimes looks up at the ancestral kitchen, but Laos respects him." Pei Xiang gathered his words and said, "The grain road is clear. Or a way to avoid eating. " As soon as you say it, you get a golden harvest.

The Biography of Xiao Wu is from the Biography of Xiao Wu, Volume 12 of Historical Records, written by Sima Qian. This article is the last one in the Chronicle of Historical Records 12. Because Sima Qian and Emperor Wu of the Han Dynasty were contemporaries, it was originally named Today's Chronicle. After Historical Records was written, Sima Qian went to see Emperor Wu of the Han Dynasty. When Emperor Wu saw this history, he "cut it in a rage". Therefore, the History of Small Arms that we see today is not the original work of Sima Qian, but a supplement to the Book of Fengchan copied by later generations.