Why did the emperors after Qin Shihuang sacrifice to heaven? Does this contradict the word "emperor"?

In ancient times, the activity of offering sacrifices to heaven existed before Qin Shihuang. If we go back to the Xia Dynasty more than 2000 BC, people at that time regarded God as an omnipotent immortal, and everything on the earth was given by God. Ancient emperors all called themselves "sons of heaven", and their power was also given by God. They are the only people in the world who can talk to God. Their purpose is to rule the world and declare orthodoxy.

After six years in Wang Jiancheng, Qin Huang became one of the four seas. He even thinks that his achievements have overshadowed the previous "Three Emperors and Five Emperors". He took a word each and creatively combined it into the title of "emperor", calling himself "the first emperor" In 2 19 BC, he moved the annual sacrificial ceremony held in the suburbs to Mount Tai, that is, "Mount Tai closed its doors and meditated", according to ancient records. I am more qualified to worship Zen in Mount Tai. The so-called worship is to worship heaven, and Zen is to worship the earth. Since Qin Shihuang, only five people have been to Mount Tai to worship heaven and earth, namely Emperor Wu of Han Dynasty, Emperor Guangwu, Tang Gaozong, Emperor Xuanzong of Tang Dynasty and Song Zhenzong. It's not that other emperors don't want to go, but that their achievements have not been achieved, and they can't go and dare not go, for fear of making everyone laugh. Therefore, the annual sacrificial ceremony is held in the suburbs of the palace.

Generally speaking, sacrifices are made on the day of the winter solstice, and sacrifices to heaven and places of worship are linked together. In the Han Dynasty, the winter solstice was called the Winter Festival, and the emperor had to take a bath and change clothes the night before to show his majesty. Do you think the emperor is going to see his father, can he not be solemn? This is for the ministers and people of the world, in order to safeguard the sanctity of imperial power. During the Wei, Jin and Six Dynasties, the winter solstice sacrifice was more grand, and after the Song Dynasty, the procedure was more complicated. According to the historical records of the Ming Dynasty, during the Jiajing period, heaven and earth began to offer sacrifices separately, offering sacrifices to heaven in the dome of the Temple of Heaven. After the Qing dynasty entered the customs, it was still treated as a sacrifice to heaven in the Ming dynasty, and every emperor regarded it as one.

Sacrificing to heaven is the only responsibility of the emperor. Because the emperor is the "son of heaven", he rules the world on behalf of God. He can contact God and pray for peace, good weather and good harvest. Others don't have this right. If he sacrifices to heaven, he will exceed his authority and be accused of beheading.