The Qing dynasty closed Changbai Mountain for 200 years, and the people were not allowed to enter. What secrets are hidden?
First, feudal superstition.
The ancients had feudal superstitions. Although Manchu is a foreigner, as an emperor, it also attaches great importance to Long Mai's geomantic theory. The predecessor of the Qing dynasty was the "post-Jin" established by Nurhachi. Nurhachi thinks that his ancestors have been living in Changbai Mountain, so Changbai Mountain is the so-called "Long Mai". After the Qing people entered the Central Plains, they were afraid that the Han people would destroy the "Changbai Mountain Long Mai", so others were forbidden to enter, and no one was allowed to enter.
Second, prevent Han people from interacting with foreigners.
In fact, the Qing dynasty not only blocked Changbai Mountain, but also blocked many places in Northeast China. Because the Qing Dynasty was a foreigner, they thought that if they wanted to rule for thousands of years, they must prevent the Han people from interacting with other foreigners. Moreover, the geographical location of Changbai Mountain and Northeast China is particularly important. The Qing dynasty built it into a military stronghold, and another purpose was to consolidate its rule.
Third, Changbai Mountain is rich in resources.
Changbai Mountain is a place rich in natural resources and products. All the wealth here is specially provided by the royal family. The medicinal materials, tonics and mink velvet used by the royal family in the Qing Dynasty were all produced in Changbai Mountain. In particular, ginseng, a world famous product, is exclusive to the royal family and outsiders can't get their hands on it at all. In short, the Qing dynasty blocked Changbai Mountain to consolidate its rule and enjoy the royal family.