Sima Yi was born in the Sima clan of Hanoi, and since childhood he was full of economics and had a superior strategy of kingship. Sima Yi knew that Cao Cao was suspicious, so he closed the door in the name of recuperation. In order to get Sima Yi out of the army, Cao Cao directly forced him to be taken into prison, and finally succeeded in forcing Sima Yi to become his own literary master.
At Cao Cao's side, although Sima Yi worked conscientiously and conscientiously every day, he still showed his disobedience from time to time. According to historical records:
"Emperor Wei Wucha had great ambitions, smelled of wolves, and wanted to test them. He summons the messenger forward, and makes him look back, facing backwards and not moving. And he tasted the dream of three horses eating the same trough, very evil. Because the prince Pi said: "Sima Yi is not a human subject, but will predict ru family affairs."
That is to say, Cao Cao perceived that Sima Yi had the ambition of Haojie and the appearance of a wolf. Once, Sima Yi reported to Cao Cao that he had finished his work, and when he was finished, he turned and left. On a whim, Cao Cao called out to Sima Yi. When Sima Yi heard this, he quickly turned his head and looked back, but his body was still forward, and indeed he was like a wolf.
"The wolf caretaker is said to turn around and not turn around, is cruel, and always has the heart to kill people and harm things." The ancients all paid attention to the face, and seeing Sima Yi's fierce face, Cao Cao felt very uneasy, and that night he also had a dream of "three horses (Sima Yi, Sima Shi, Sima Zhao) food trough (Cao)". So the next day, Cao Cao warned Cao Pi, "Sima Yi is by no means a human subject, and will inevitably interfere in your family affairs."
Now that Sima Yi has gained great power and has the power to command the world through the change of GaoPingling, why is it so low-key now, not only low-key burial, but even not allowing his descendants to sacrifice for themselves? And this, we have to start from the change of Gaopingling. The Wei Ming Emperor Cao Rui died in the third year of the Jing Dynasty (239 CE), and was succeeded by the eight-year-old crown prince Cao Fang, while the generals Cao Shuang and Sima Yi became the ministers of the Tuogu.
However, after Cao Rui's death, Cao Shuang united with a group of henchmen and appointed Sima Yi as a lieutenant, seizing Sima Yi's military power in the form of a bright ascension and a secret surrender, completely emptying it. Sima Yi knew that Cao Shuang was jealous of himself, so he used the strategy of "false delusion and not epilepsy" and pretended to be ill at home all day.