Literature Reference: 南楼弹弦北户舞，行人到此多回徨。—— 《斜路行》 In the southern tower, strings are plucked, while in the northern house, dances are performed; travelers here are often in a state of confusion. Source from 'The Crooked Path Song'.
北: Direction, in the morning facing the sun, the side to the left hand, opposite to "south".
户: Lineage, Surname.
Meaning: The northern door symbolizes warmth and shelter, representing the peace and sense of belonging of home.