With the story of Wendi and Feng Tang. According to the biography of Han Feng Tang, Shang Wei, the satrap in the cloud, managed the army well, "keeping the Xiongnu away from the cloud and jam". Once he invades, he will kill many people. Later, due to the "poor six grades" when reporting merit, he reported six more grades, which was "the official of Wendi, and his title was cut". Feng Tang tried his best to defend Shang Wei, thinking that Deng Wendi's "rewarding the light and punishing the heavy" was very unpopular. Emperor Wen suddenly realized that on the same day, he let Feng Tang forgive Shang Wei, restore his official position, and worship Feng Tang as a captain of chariots and horses. Section: Military symbol, which was used by ancient envoys to win trust. Chastity: It is an important mission of the imperial court. Yun: In today's Tuoketuo County, Inner Mongolia, including parts of northwest Shanxi Province. Su Shi was not very proud of his political situation at that time. Shang Wei, who was guarding the frontier, boasted here, hoping to gain the trust of the imperial court.