First of all, Emperor Wendi was born in a famous family, which became the basis of his power. Emperor Wendi's family is a famous family in the Northern Dynasty. His father's name is Yang Zhong, and he is the minister of the humerus of the Northern Zhou Emperor. Even gave him a title of Xianbei and made him a vassal. Therefore, Emperor Wendi's family background is very prominent, and his family has been famous for more than ten generations. A family has accumulated more than ten generations of material and personal wealth and left it to Emperor Wendi of Sui Dynasty, which shows that its foundation for seizing political power is very solid.
Secondly, Emperor Wendi himself is very talented. Emperor Wendi of Sui Dynasty became an official in his teens and won the trust and love of the emperor at that time. When Emperor Yuwen Yong of Zhou Dynasty succeeded to the throne, Emperor Wendi of Sui had real power. He was only 19 years old and married Du's daughter, and his strength was further enhanced. Later, Yuwen Yong really felt that Emperor Wendi was severe and wanted to suppress him, but unfortunately, Emperor Wendi himself was also very capable, and he could turn the tide every time, but Yuwen Yong could do nothing.
Finally, Yuwen Yong, the emperor of the Zhou Dynasty, died young, but his son Yu Wenyun was a cruel and incompetent bad king. Emperor Wu of Zhou was indeed a lucky man with extraordinary skills. Unfortunately, his son was not only mediocre, but also worried about his personality, which gave Emperor Wen of Sui a chance to win the Northern Zhou Dynasty.
It can be said that Emperor Wendi of Sui Dynasty, Emperor Wendi of Sui Dynasty, can easily replace the Northern Zhou Dynasty in the end. The fundamental reason is that his background is hard enough. It is precisely because his background is hard enough that he has the capital to win and even consolidate the country.