At the end of the Han Dynasty, the world was in chaos, and the wars between the princes were not endless, and Xun Yu, in order to preserve the strength of the family, led the clan to move to Jizhou for refuge. In the beginning, Xun Yu chose to serve Yuan Shao, although he was highly valued under him, but over time Xun Yu found that Yuan Shao did not have a visionary pattern and it was difficult to become a climate. So he resigned and defected to Cao Cao, and the two of them had a very happy conversation at first sight, and Cao Cao found that Xun Yu was indeed extraordinary, and said excitedly: "My son Fang Ye!" Cao Cao compared Xun Yu to Zhang Liang, the advisor of Han Gaozu, which shows how important Xun Yu's intelligence was to Cao Cao, and soon entrusted him with a heavy responsibility.
After that, Xun Yu not only recommended many Yingchuan talents for Cao Cao, but also repeatedly contributed strange strategies to Cao Cao, which played an extremely important role in the process of Cao Cao's unification of the north. However, with the expansion of Cao Cao's power, the two eventually disagreed, and Cao Cao gradually showed a tendency to represent Han, while Xun Yu always believed that he should be loyal to the Han dynasty and should not usurp Han to stand on his own. In the end, Cao Cao reluctantly gave Xun Yu death. And we know that Liu Bei has been committed to "reviving the Han Room" all his life, and since Xun Yu was so loyal to the Han Room, why didn't he go to assist Liu Bei in the first place?
First, Liu Bei was too weak and inconspicuous at that time. After Xun Yu left Yuan Shao, the next step was naturally to choose another lord who was worthy of assistance, and according to Xun Yu's ideal of supporting the Han room, it was naturally Liu Bei who was the most suitable. However, at that time, Liu Bei was too weak and small, and except for Guan Yu and Zhang Fei, there were basically no soldiers and horses around him, and he did not have his own foothold. It can be said that Liu Bei at that time was unremarkable, and I am afraid that there were not even many people who knew Liu Bei, let alone his popularity. Therefore, Xun Yu basically had never heard of Liu Bei's figure, let alone serving him.
Although Cao Cao was not strong at that time, but his reputation was outside, he was still a little famous, and what he had done before made Xun Yu think that he was a person who could achieve great things, and Cao Cao in the early stage was only bent on calming this chaotic world, and did not expose too much the idea of Dai Han, so Xun Yu chose Cao Cao at that time as his wisest choice.
Second, Cao Cao was the most likely person to pacify the world. The Yingchuan Xun clan was a very influential family at that time, especially in the middle and late Eastern Han Dynasty, and its family was very famous. Their family concept is very heavy, and everything is based on the interests of the family. At that time, they believed that Cao Cao was most likely to pacify the world, and assisting Cao Cao was the most beneficial to the development of the Xun clan. This is why after Xun Yu joined the Cao Cao clique, he recommended a large number of Xun's disciples, such as Xun You, Xun Shuang, Xun Yue, Xun Yan, and so on.
It is precisely the spirit of the Xun clan's sons to develop in a group that has allowed their family power to continue to develop continuously, and their status in society has gradually been improved. Although there were many powerful princes at that time, such as Yuan Shao, Yuan Shu and others, it was difficult to become a big thing with a small amount of qi. However, Liu Had the heart to achieve great things but did not have this strength, only Cao Cao at that time had the conditions to achieve great things, so it was inevitable that Xun Yu chose Cao Cao.
Moreover, for Cao Cao's early performance, Xun Yu was also very satisfied, and was willing to contribute to him, and at the same time recommended a large number of talents for him, such as Guo Jia, Zhong Xuan and others. It was only in the later period that Cao Cao was strong and had the heart to replace the Han Dynasty in the face of the increasingly western mountains, and Xun Yuming knew that the Eastern Han Dynasty had decayed and that time was short, but he was unwilling to accept this fact in his heart, and still held a glimmer of hope that the Great Han could be revived. But the trend of history is already like this, even if Cao Cao does not have this heart, sooner or later someone else will do this. Unfortunately, Xun Yu was confused at this point, which led to the occurrence of his own tragedy.