Xidi refers to the place where banquets are held. Although no one has said it, there are only nine poems with western delivery, all of which are related to the military attache of the general, so it should be said.
Xidi, a big house in the west. In the west, the ancients held banquets, first in the west, then in the north, south and east. First, the mansion of bureaucrats and nobles in ancient society.