The Forbidden City has a dry cleaning door and a dry cleaning palace. What does that mean?

Doing it clearly means that the world is peaceful, and doing it in the Book of Changes represents the sky, that is, the son of heaven and the government are clear.

Kunning, Kun is the land, female, and the harem is peaceful. Between Gan Qing Palace and Kunning Palace is the Jiaotai Hall, which symbolizes the unity of heaven and earth, national peace and security.

Gan Qing Palace was built in the 18th year of Yongle in Ming Dynasty (1420). Before Emperor Kangxi of the Qing Dynasty, it followed the Ming system. During the period of Shunzhi and Kangxi in Qing Dynasty, Gan Qing Palace was closely related to government affairs. Gan Qing Palace is the head of the imperial palace. Fourteen emperors of the Ming Dynasty and two emperors of Shunzhi and Kangxi of the Qing Dynasty lived in Gan Qing Palace.

Extended data:

The Forbidden City is also called the Forbidden City. In ancient China, the planning concept of "harmony between man and nature" was emphasized, and the stars in the sky were used to correspond to the capital planning, so as to highlight the legitimacy of political power and the supremacy of imperial power. The Emperor of Heaven lives in Wei Zi Palace, and the emperor on earth claims that he is the "son of heaven" ordered by God. His residence should be a symbol of Wei Zi Palace, so as to conform to the Heaven Emperor. The Book of the Later Han Dynasty records that "there is a Wei Zi Palace in the sky, which is the residence of God".

The king built a palace and liked it. "Wei Zi, Ziyuan, Zigong and so on have become synonymous with the Forbidden City. Because the feudal palace was forbidden in ancient times, ordinary people could not enter it, so it was called "Purple Forbidden". However, it was called the "Imperial City" in the early Ming Dynasty and directly called the "Forbidden City" in the middle and late Ming Dynasty.

Baidu Encyclopedia-Gan Qing Palace