Why did the ancient imperial crown of China "hang a bead curtain"?

There are a row of bead curtains on the front and back of the ancient emperor's hat, representing the ninth five-year plan for the emperor. This curtain is actually very useful. First of all, the original intention of this bead curtain design is to make the emperor stand up straight. When the emperor sits incorrectly, the bead curtain will tilt and it will easily hit his eyes. At the same time, princes and ministers can easily see that the emperor is deserting. Therefore, this can always remind the emperor to stand like a pine, sit like a clock, straighten up and play an extremely active role in the court.

In addition, the bead curtain will block part of the emperor's sight to remind him to be more tolerant and understanding when facing princes and ministers. Some things can be turned a blind eye, don't pursue too much. There is no need to haggle over everything, so that courtiers will be more cohesive, grateful to the emperor, and thus have awe of the emperor.

At the same time, after the bead curtain covers the emperor's eyes, it can remind him not to be blinded by what is in front of him. What he saw was not necessarily the truth. He should think more, see far and see far. In addition to the bead curtain, there is a piece of jade on both sides of the emperor's hat, which is the function of earplugs. Remind the emperor not to listen to one side of the story. If you want to listen to both, you will understand and be biased. This is where the word "turn a deaf ear" comes from.

In fact, the emperor's "hanging bead curtain" is also a kind of protection for himself. The emperor can see the minister, but the minister can't see the emperor's face clearly, which can maintain the mystery and enhance the deterrent. When discussing state affairs, the emperor can also hide his thoughts well, which can prevent some ministers from speculating excessively on the imperial edict to some extent and acting simply by looking at their eyes, which is conducive to democratic decision-making.