Who can talk about the specific measures of Huairou policy?

A measure taken by the rulers of the Qing Dynasty to win over the upper nobility of Mongolia and Tibet and strengthen their ideological and political rule. After the demise of the Ming Dynasty in the Qing Dynasty, on the one hand, in the northern military region, relying on the Great Wall of Ming Dynasty or setting wicker borders to strengthen defense; On the other hand, we decided not to build the Great Wall in view of the lessons of the Ming Dynasty's national subjugation. Emperor Kangxi once commented in a poem that Qin Shihuang built the Great Wall. Although the project is huge and the people are exhausted, it still fails to save the world. Therefore, he changed his ruling policy and adopted the "Huairou" policy of attaching importance to morality and popular support, in order to win over the upper class aristocrats of the Mongolian and Tibetan nationalities, make use of religious beliefs and replace the huge Great Wall project with ideological rule. This policy includes preferential treatment for Lu, reduction and exemption of Lu and knighthood to ensure his hereditary rights. It is stipulated that they take turns to go to Beijing or Chengde to see the emperor, give a banquet for sightseeing, and pay well. Pay special attention to the Mongolian upper class, emphasize "Manchu-Mongolian integration", and intermarry with them with royal children. In addition, among Mongolians and Tibetans, the Yellow Sect is fostered, the living Buddha is respected, and lamas are treated with courtesy. Many lamaseries have been built in various places, and they are ruled by religion. The implementation of these measures was supported by Nagano and achieved positive results at that time.