In the past, the emperor was like a dragon, the master of the country, the country is all his say. He could kill people if he wanted to, and no one would dare to complain. The fact that you are shouting that the emperor is coming can be interpreted as the master is coming, the god is coming. Loud is more reflective of his majesty.

The dynasty seems to have started when Qin Shi Huang called himself the First Emperor. It also reflects his majesty and honor as the first emperor on earth.