In Wei Zi's fights, people who are opposite and the same as the archway will be photographed and seen. What could it be, Yi Shi?

There are many kinds of understandings of arches, some say it is a palace, and some say it arches the palace of life in a tripartite position. The same degree refers to the same house, the meeting refers to the same house or three parties, and the photo refers to the opposite house. There are many explanations, and I have seen them in the same palace, palace and three parties. The meeting generally refers to the same palace, and in a few cases refers to the tripartite meeting.