This two-part allegorical saying comes from the 50th chapter of Romance of the Three Kingdoms.
It is said that Zhuge Liang returned to Xiakou after borrowing Dongwu Dongfeng, and arranged various forces to repel Cao Cao. Guan Yu saw that most of the generals had been sent out, but without him, he said loudly, "There was such a big war today, and the strategist left me hanging." I don't know what it means? " Zhuge Liang said, "The clouds are long. I thought about it. If Cao Cao is defeated today, he will take Huarong Road.
You are a loyal and affectionate person. At the beginning, Cao Cao treated you well, but I'm afraid we met this time. Speaking of the previous situation, I can't do it, and I missed a lot. "Guan Yu listened to, which is convinced, resolutely strive to go, and set a written pledge to fulfill a military order. Later, Cao Cao was defeated by Huarong Road. Guan Yu saw Cao Cao's defeat and remembered Cao Cao's kindness to him at the beginning and what happened later. He couldn't help feeling pity and letting Cao Cao go.
Cao Cao (158 —— March 22015), posthumous title, was born in Peiguoqiao County (now Bozhou, Anhui Province). At the end of the Eastern Han Dynasty, he was an outstanding politician, strategist, writer and calligrapher, and the founder of Cao Wei regime.
Cao Cao likes to express his political ambitions and reflect the sufferings of people's livelihood with poems. He is a representative figure of Wei and Jin literature, and Lu Xun praised him as "the founder of reforming articles". At the same time, Cao Cao is good at calligraphy, and Zhang Huaiguan's Broken Tang Book rated Cao Cao's Cao Zhang as a "wonderful work".