What does porch mean?
It turns out that the porch is a term used in China Taoism (Inner alchemy, the qi in the body passes through the whole body first), Zen and other thoughts. The source is "my husband's porch is the most mysterious organ." (The Gate of Xuanzang). Later, the word "porch" was used to refer to the space at the entrance of the building.
The entrance of traditional buildings in China usually has a screen or a middle door (the screen in the middle of the back door) to separate the door from the hall. Some houses have chairs on their porches. Some houses take independent buildings as the main entrance, and the entrance door is located in the lobby, which is the porch.
Extended data
In Japan, the porch refers to a room or building located at the entrance of the abbot of a Zen temple or the formal entrance and exit of a modular residence in a university. In addition, in the Edo era, entrances and exits with platforms (raised floors protruding from the soil under which shoes can be placed) were also called porches. After the Meiji era, it gradually evolved into a general reference to the entrances and exits of any form of residential and public buildings.
In Japan, the Korean Peninsula, ancient China and Viet Nam, you take off your shoes almost as soon as you enter the door. In East Asia, Southeast Asia and other vast areas, there are also many cultures that have the habit of taking off their shoes in the door. In some suburban houses in the southern United States, there is also a space called mud room for taking off coats and shoes.
Baidu encyclopedia-porch