In addition, the living room was also called "hall" in ancient times, which was a place for meeting friends, parents' early education and festive activities, and it was necessary to control the scene. The halls of large houses are orderly and well-behaved. Based on the central axis of the main hall, it is placed symmetrically. Furniture, couplets, plaques, hanging screens and painting screens are symmetrically arranged on both sides with the central axis as the center, which is solemn, noble and very imposing.