It can't be wrong to take the gate as the direction in ancient times, because there were no balconies and the like in ancient times. There are several, but the balcony also faces the door, so it must be right to use the door. But now houses, especially cities, have changed a long time ago.
Always know that place is full of yin and yang, and take this place as the direction at most, whether it is the gate or the balcony.
What is Yin-Yang and what is Yin-Yang transmission? These two points are naturally established.