In geomantic omen, the sitting and orientation of the house must be relative. If the main room is taken as the standard, sitting on the mountain is dry and facing the water is awkward, but it is also possible that the gate faces the water.
There were still some differences in the sitting orientation of the house before and now, but this statement can only be used one hundred and twenty years ago, because the house at that time was basically a standard model, and the front of the house was the gate and patio, which was the strongest lighting side, so it was not wrong to take the door as the orientation. But now the house, the gate is not the only way of lighting, or even just an entrance, and no light can be collected, especially in the buildings in the city.
In geomantic omen, sitting orientation is a very important subject, but it is becoming more and more difficult to decide.
in principle, it is around the building. If there is a mountain, sit down with the mountain first, and if there is water, orient with the water first.
if there is no real mountain and water, you can also see rockeries (other buildings) and fake water (roads) first.
There are no mountains or water around the building, so take the most empty side as the direction, and the emptiness is the sun, and the sun is the direction.
It's the same all around. If it's surrounded by other buildings with the same height, such as some villages in the city, it's the side with the most light, mostly balconies or windows.
finally, when you can't tell the direction of sitting around, you should take the gate as the direction.