Obviously, this has hinted to everyone that Li Hong will be the heir to the throne. What is the secret intention of Yongzheng to build a store?

Yongzheng has hinted that Li Hong is the heir to the throne, but he still implements the secret storage system. That's because Yong Zhengdi proved to the world that his throne was also legally obtained, and in order to ensure that the heir was not inflated or arrogant, he still made redundant efforts and set up a secret storage system.

Yong Zhengdi succeeded in sitting on the throne of the emperor after the Jiuzi usurped the throne. After Yong Zhengdi acceded to the throne, he announced the use of the "secret storage system" to select his successor, and took action to write the name of the heir to the throne on the imperial edict and then put it behind the plaque. Although Yong Zhengdi made it clear that the heir was secret, he always treated Li Hong differently. Even if he went to worship Emperor Kangxi, he let Li Hong do it. His action is to tell people that Li Hong is the heir.

This also caused Redstone to be very dissatisfied. In terms of age, Hong is older than Li Hong; From the identity point of view, Li Hong is not a descendant and does not have the qualification to inherit the throne. So Redstone was persuaded by stealth, and later directly opposed to Yong Zhengdi. Yong Zhengdi got angry and removed Redstone from the genealogy. So why does Yong Zhengdi have to reinvent the wheel and set up a "secret storage system"? I think his purpose is to prove the legitimacy of being an emperor, because when Emperor Kangxi was alive, he didn't announce who was the heir, but when he died, he announced the heir.

Yong Zhengdi set up this system to tell the world that he inherited the throne not by means, but by Emperor Kangxi. There is also telling people that the heir to the throne is decided by the emperor, and it is useless to argue with the princes. There is also telling the confirmed heir to the throne not to be too complacent, or to seize the throne in advance.