The terrain is concave and flat.

Does this mean that your home is behind the valley of that mountain, or behind the gentle sides of that mountain? The former is not good. If you want to see from this mountain, your home is in that recess, just like on a gun target, that is, as a target. So the latter is better, but the position is lower. The wind on the other side of the mountain will not rush directly to your home, but rush up and blow down again.