The head is facing east, which means the head of the bed is in the east.
This statement is a bit qigong. The sun is in the east, so the east belongs to Yang and Yang. The sky overhead is Yang's. The sunset is cloudy. Stepping on the ground is chaotic and belongs to yin. The movement of qi in the head, east foot and west body is the same as that of heaven and earth, so that it will not hurt the yang.
Yang Qi is the foundation of life.
Is to adapt to this theory.
I think so.