Because Changbai Mountain is the dragon vein of the Qing Dynasty. Since ancient times, there has been a saying about Dragon Palace exercises in Changbai Mountain. In the middle of Ming Dynasty, a Feng Shui master once said that saints will emerge from Changbai Mountain. The clear records in Donghua Lu record that there is a Burli Lake in the east of Changbai Mountain. Three fairies once bathed in the pool. A dragon entered their belly and they became pregnant. One of them gave birth to a son who was born able to speak. When he became an adult, the goddess gave him His surname is Aixinjueluo, and his given name is Bukuli Yongshun. Bukuli Yongshun was the ancestor of the Qing Dynasty. He respected Changbai Mountain very much throughout his life, and offered a stone with three fairies coming out of the bath in the shrine, burning incense and worshiping.
Emperors of the Qing Dynasty have respected Changbai Mountain for generations. In 1677, Kangxi ordered his ministers to pay a visit. These ministers fulfilled their mission and went all the way to the bank of Tianchi. After returning to Beijing, the ministers asked Kangxi to confer the title of God on Changbai Mountain. Kangxi agreed, and Changbai Mountain entered the list of conferential rituals of all Chinese emperors and ranked first. In the 22nd year of Kangxi's reign, Kangxi led the prince and the kings and officials to Changbai Mountain again, but they only knelt three times and kowtowed nine times from a distance to express their respect for the place where their ancestors were born.
The emperors Kangxi, Qianlong and Jiaqing of the Qing Dynasty all visited Changbai Mountain, and the imperial edict to seal Changbai Mountain was issued by Qianlong after visiting Xiaobai Mountain in 1754. The original purpose of Qianlong's move was to protect the birthplace of Aisin Gioro, but it inadvertently promoted Changbai Mountain Stone Culture. The dignitaries of the Qing Dynasty ignored the imperial ban and secretly collected gold and stones from Changbai Mountain to make ornaments and hid them in their homes for secret worship.
In addition, some people believe that the reason why Qianlong sealed off Changbai Mountain was to cover up the secret of the Jurchen people's claim to emperor. It is recorded in the Jin Dynasty that there is a sacred tree in Changbai Mountain named Luochang. This tree is closely related to the succession of dynasties and can predict the trend of emperors. "If there is a holy emperor in China, the sacred tree will produce skins for clothing." If the Jurchen tribe gained the world through the hint of this sacred tree, then they must also be wary of others getting help from the sacred tree.
From a superstitious perspective, Changbai Mountain is the dragon vein of the Qing Dynasty. Only by ensuring that the dragon vein is intact and inviolable can the stability of the country be guaranteed. The rulers of the Qing Dynasty blocked Changbai Mountain to prevent anyone from sneaking into it to damage the feng shui and thus affect the national destiny of the Qing Dynasty. In addition, according to legend, Changbai Mountain contains countless wealth that the Qing Dynasty seized from the Han people. Part of this wealth was sent to the deep mountains and old forests of Changbai Mountain. This legend has never been recognized by the Qing royal family, but it attracted countless people to hunt for treasures. Among them were scientific expedition team members from Tsarist Russia and Japan. When Zhang Zuolin ruled the Northeast, he also sent his confidants to explore the secrets of Changbai Mountain.
Finally, as the land where the Qing Dynasty made its fortune, the Qing Dynasty had a deep affection for it and protected it so that they would have a place to live in case of the disaster of genocide one day in the future. Changbai Mountain has fertile land and rich products. If you retreat here, you can guarantee that you will not starve to death even if you don't have glory and wealth.