What do you mean by going through customs?

"Going through customs" is a Chinese character, which means leaving customs or palaces. This word can mean that people or things leave a place or building, or people or things enter another country or region from one country or region.

In ancient times, customs clearance was often related to war and border defense. Because the ancient pass is an important barrier to defend against foreign enemies, only through the pass can we enter and leave the border areas. Therefore, going through customs often requires strict inspection and approval to ensure safety.

In modern times, going through customs can refer to people or things leaving customs, borders or other passes, or people or things moving from one city or region to another. This word is often used in tourism, trade, immigration and other fields.

Generally speaking, "going through customs" is a word with historical and cultural connotation, which represents the movement and change of people or things from one place to another. In different historical and cultural backgrounds, the meaning and significance of customs clearance will be different.

The meaning of going through customs in ancient times

1. Military action: In ancient times, the pass was an important barrier against foreign enemies and a key node of military action. Therefore, customs clearance is often closely related to military operations. When the army needs to leave the pass because of combat or strategic shift, it is called "going out of the pass". For example, it is recorded in Historical Records that "Li Mu went through customs to attack Xiongnu", that is to say, Li Mu led his army to go through customs to attack Xiongnu.

2. Trade: In ancient times, the pass was also an important channel for trade. When a businessman needs to leave the customs for trade activities, it is called "going through customs". For example, the "Silk Road" recorded in Historical Records refers to an important channel for trade through portals.

3. Migration: In ancient times, the pass was also an important channel for migration. When people need to leave their hometown and go to other areas through customs, it is called "going through customs". For example, crossing the Kanto refers to the migration tide of immigrants from Shandong and Hebei to the northeast to make a living during the Qing Dynasty.