When it comes to the history of the Three Kingdoms, everyone knows that the final outcome is that Jin unified the Three Kingdoms. For the State of Wei in the Three Kingdoms, under the rule of Cao Cao, it dominated one side. The strength should be the strongest of the Three Kingdoms, and the reason why it is so powerful must be inseparable from the able people and strangers around Cao Cao. Guo Jia and Sima Yi were famous strategists in history, and both of them were Cao Cao and did things for the State of Wei, but Before his death, Guo Jia told Cao Cao that Sima Yi would rebel, and asked Cao Cao to kill Sima Yi. History proves that Sima Yi and his descendants did rebel afterwards, and finally Sima Yi's grandson Sima Yan unified the three kingdoms and established the Jin state. So, what is puzzling is how Guo Jia knew that Sima Yi would rebel?
Guo Jia is a person with unique insight and foresight. Guo Jia did not follow Cao Cao in his early days, but followed Yuan Shao. However, Yuan Shao would only imitate the Corporal Li Xian of the Duke of Zhou, but did not know how to use talent. Thinking a lot and lacking the essentials, it is difficult to follow him to achieve his revenge, and it is difficult to achieve a hegemony. So Guo Jia left Yuan Shao. During this period, he lived idly for six years. In the first year of Jian'an (196), Cao Cao's adviser Xi Zhicai died. Therefore, Xun Yu recommended his friend Guo Jia to Cao Cao. Cao Cao and Guo Jia met for the first time to discuss the world's major events, and after the discussion, Cao Cao said: "You can help me achieve great things." After Guo Jia left the tent, he also said to the outside world: "This is the person I want to assist!" "
The first time they met, Guo Jia knew that Cao Cao was an ambitious man and knew how to appoint people on merit and give his subordinates enough space to exert their abilities. So he made up his mind to follow Cao Cao, and he was able to show his "fists and feet" under Cao Cao's account. Guo Jia assisted Cao Cao in capturing Lü Bu, breaking Liu Bei's army and capturing Guan Yu. Later, he planned to defeat Yuan Shao's two sons, Yuan Tan and Yuan Shang. Help Cao Cao unify the north.
Proficient in the current situation, accurate predictions. In the third year of Jian'an (198), Liu Bei was broken by Lü Bu and attached to Cao Cao. At that time, Cao Cao asked Guo Jia how to deal with it, and Guo Jia said that Liu Bei could not be killed or allowed to go, and that after killing him, it would cause the anger of the people of the world, and letting the tiger return to the mountain would lead Liu Bei to become a great enemy. In the end, Liu Bei seized the opportunity to escape, and then established the State of Shu, which became the biggest hidden danger of the State of Wei. There is also the famous "Ten Victories and Ten Defeats Theory", when in the duel between Cao Cao and Yuan Shao, Cao Cao was worried about his lack of strength, and Guo Jia wrote a chicken soup for his soul. Sure enough, as this statement suggests, Cao Cao defeated Yuan Shao in the "Battle of Guandu" in the fifth year of Jian'an (200). The foundation for the unification of the North was laid. In addition, there are many predictions that Guo Jia said, which have been accurately fulfilled. In history, there is a saying that "Guo Jia does not die, and the Crouching Dragon does not come out".
However, Guo Jia fell ill in his early years, and when he was about to die, he left one last prophecy for Cao Cao. "Sima Yi has the appearance of a wolf, the heart of a tiger and a bear, and Jin Lin must not be a thing in the pool, and the minister has long sensed that his heart is different, and is willing to suppress this person for the sake of the chancellor, and if the minister goes early, it is difficult for him to be a chancellor..." The gist is to say: After I die, I must guard against Sima Yi, this person is too ambitious. If something doesn't feel right, it's best to kill it. However, when Cao Cao killed Sima Yi, because Sima Yi said that he could help Cao Pi win the throne, Cao Pi interceded for him, and Cao Cao did not insist on killing Sima Yi. After that, Sima Yi really helped Cao Pi to earn the throne, and Cao Pi reused Sima Yi after succeeding to the throne. Eventually, the Sima family gradually overshadowed the Cao Wei regime, and finally Sima Yi's grandson Sima Yan unified the Three Kingdoms and established the Jin Dynasty.
Regarding this prophecy, the relevant historical sources say that Guo Jia once had a dream that three horses grazed in the manger, and the horse naturally referred to the Sima family, and the horse grazing was sima Yi who wanted to oppose Cao Wei. The three horses also refer to Sima Yi, Sima Zhao, and Sima Yan. In the end, the State of Wei was destroyed in the hands of these three Sima surnames. Coupled with the fact that Sima Yi was forcibly pulled by Cao Cao to become an official and was forcibly summoned to be an official, it was inevitable that there would be complaints in his heart. However, Sima Yi looked as usual and was diligent in his duties. There was no sign of reluctance. These practices made Guo Jia suspicious, coupled with the dream he had, so he was more certain. For Guo Jia and Cao Cao Wei's world, Sima Yi would rather kill by mistake than let it go. It was also before he died that he made this prophecy to Cao Cao.
Guo Jia followed Cao Cao all his life, but he also followed Cao Cao wrong. Cao Cao had the grace of knowing him, and the two were like confidants, and Guo Jia helped Cao Cao unify the northern trend. There were many good strategies for Cao Cao, and if Cao Cao had adopted these suggestions, he might have unified the world a long time ago. However, due to his suspicions and the benevolence of the woman who loved talent, and many strategic mistakes, Liu Bei was given the opportunity to establish the Shu state and divide the world with Sun Quan.
Guo Jia saw the micro-knowledge and insight into the current situation. The prediction that Sima Yi would rebel was also due to his insight into people's hearts and his determination to kill by mistake rather than be prevented. However, he died young and was unable to help Cao Cao fulfill his ambitions for unification. Therefore, he wanted to help Cao Cao solve the troubles, so he left a prophecy that Sima Yi could not be killed. This undoubtedly also shows Guo Jia's absolute loyalty to Cao Cao