Sibuxiang introduction: Back then, Jiang Ziya held a magic whip and rode on Sibuxiang to help King Wu of Zhou attack Shang Zhou. After the work was completed, Jiang Ziya passed by the Mang River. He thought of the time when King Tang prayed for rain for the people of the world. He felt ashamed of Shang Tang, so he shouted: "Jiang Ziya is sorry for you!" After saying that, he left his mount here and walked away on his own. go. The "I'm sorry" we often say now comes from this.