What is the reference point for Taoist magic to measure intention according to direction?

Daoism divides directions according to the direction measurement and the meaning of Tai Chi. For example, sitting around a round table, the center of the round table is Tai Chi, and its orientation is determined according to the different orientations of the people sitting around the round table; For example, in a room, treat the center of the room as Tai Chi; If you are in an empty place, you can take your position as Tai Chi and the position of different people relative to your position as a reference.

Therefore, according to this, in practical application, there are several methods to measure the direction of the destination. The first is based on the position where the visitor sits or stands after coming in, and the second is based on the position where the person came here. You can use everything flexibly and don't stick to one method.