I have a daughter at home, eating in the east wing and living in the west wing.

Traditional houses respect the left, so the grade of the east wing is higher than that of the west wing. Generally, the eldest son and daughter-in-law live in the east wing. Therefore, the height of the east wing and the west wing in the building is slightly different. The east wing is slightly higher and the west wing is slightly lower, but it is difficult to see with the naked eye due to subtle differences. For example, the east wing of Shijiazhuang quadrangle is two inches higher than the west wing. In North China, the east wing is exposed to the sun in summer, and the northwest wind blows directly in winter, so it is not suitable for living. The east wing rooms of Shaanxi quadrangles are mostly used by rich households to store grain or make kitchens and stables.