Chongzhen is a very sad emperor. He is not a bad king. He has done a lot of things, hoping to turn things around. However, Daming is still hard to return, and Daming officially perished in the hands of Chongzhen. Chongzhen went to Jingshan Park, found a locust tree, and then ended his life in this way, judging the merits and demerits of future generations. Later, after the Qing Dynasty entered the customs, Dourgen had Emperor Chongzhen buried with the emperor's gift, and then the locust tree was tied with chains. What was it called? Sin locust? . In this way, Xin Huai's chain has been locked for more than 200 years. The main purpose of Dourgen's doing this is to appease the old minister of Daming and the people all over the world.

Dourgen used the sin tree to express his regret for the death of Emperor Chongzhen. Dourgen of the Manchu camp actually wanted to see Chongzhen commit suicide and Daming perish, but he just couldn't say it on the surface. After all, they attacked Li Zicheng under the banner of revenge for Emperor Chongzhen. However, Emperor Chongzhen had to commit suicide. This locust tree killed Chongzhen. This is a guilty tree, so Dourgen locked it. The purpose of his doing this is to let the world know that he and the Manchu nobles feel sorry for the death of Chongzhen.

Dourgen hopes to win the hearts of the people in this way. Dourgen has repeatedly stressed that the Qing Dynasty won mountains and rivers not from Daming, but from Li Zicheng, so he blamed Li Zicheng for the demise of the Ming Dynasty. The Qing dynasty just entered the customs and the country was newly built. Dourgen knows the importance of popular support. In order to manage the Central Plains well, Manchu needed the help of old officials of Daming and the support of people all over the world. Whether burying Chongzhen or killing Sophora japonica. Sin locust? Dourgen's political intentions are obvious.

In a word, Dourgen's lock on Sophora japonica is to let the world return to their hearts. Manchu is a minority regime, which rules many Han people. In order to make the country stable for a long time, it is necessary to alleviate ethnic contradictions. For the purpose of stability, later Qing rulers often praised the Ming Dynasty and went to worship the Ming Tombs.