The reason why this purpose has not been stolen, in addition to geomantic reasons, there is also a very important reason is the general trend. Because when the next dynasty is established, the emperor's mausoleum of the next dynasty will basically be locked. But the Qing dynasty didn't do this, because the country of the Qing dynasty was taken from Li Zicheng. The mausoleum they want to destroy is for Li Zicheng, the king of Lin, not for the Ming Dynasty before. Therefore, the Qing dynasty only used war to establish its own political power. In addition, Li Zicheng failed to enter the customs in the Qing Dynasty shortly after he occupied Beijing, which caused him to have no time to manage the related tombs.
At the same time, during the Qing dynasty, many people hoped that the Ming dynasty could re-approve it. Because in the Central Plains, mainly Han people, the rulers of the Qing Dynasty were jurchen. This is very different from the rule of the Han people, so the locals hope that the Han people can continue to rule, so that their lives and related customs can be further preserved. Therefore, many people will not go to the Ming tombs to rob each other, thinking that this is a scourge.
The purpose of the Ming dynasty also has a very big feature, that is, there are many stones. Although it is unknown whether there are organs in the cemetery, there are so many stones. Therefore, it also gives grave robbers a certain retreat.