Can I open a window behind the ancestral temple for geomantic omen?
Windows should not be opened on the wall dedicated to ancestors and gods, or on the wall behind the house (if any).
If you open a window on the wall of your ancestors, the air will flow away through the window. When the air flow outside the house is strong (such as winter), it will flow around the house, the candles in front of the altar will go out and the incense ashes will rise.
If there is a window on the other wall behind the house, it will be the same phenomenon as in the world. Coupled with being a villain, a thief and a dark place, unexpected bad things are easy to happen.
There should be a clearing in front of the ancestral hall. The open space in front of the ancestral hall is the Mingtang, where money is collected. There is no shelter. To place things and plant trees, it must be on the left and right.
I wish your family prosperity!
If you accept, please click the satisfactory answer. ※