- The Tui En Order is a policy that uses the contradictions between the sons of the princes to divide and weaken their power.
- The core of the Tui En Order is to overthrow the previous rule that the family property of the princes can only be inherited by one person, and change it so that as long as you are a son of a prince, even if you are an illegitimate child, as long as you are recognized by the court, you can get a share and get a piece of land and a recognized country.
- In this way, the fiefdoms of the princes will become smaller and smaller, and the newly sealed marquisates will no longer be under the jurisdiction of the kingdom and will be directly managed by each county. This makes it possible for the princes to be cut off in disguise and avoid the possibility of rebellion.
- This policy is like letting the masses fight against each other, allowing the princes to consume their own strength and achieve the goal of centralization.