What do you mean by sitting south facing north?

Is to turn your back on the south and face the north. In the eyes of China people, the South and the North are endowed with many other meanings, with the South symbolizing supremacy and the North indicating inferiority.

When building a house in China, people also pay attention to sitting south facing north. Because China is located in the northern half of the earth, most areas are located in the north of the Tropic of Cancer, and all the sunshine in the four seasons comes from the south. If the house faces south, it will be easier to get light. Sitting facing south is not only for lighting, but also to avoid the north wind.

Extended data:

East, south, west and north are the basic directions; Northeast, southeast, etc. It's the middle direction. Azimuth is the position in all directions. The four directions or basic directions are east, west, south and north, and the relative directions are front, back, left, right, up, down and middle.

References:

Positioning-Baidu Encyclopedia