Geomantic taboo of semi-circular convex window

There is a semi-circular room with good feng shui. -Theoretically speaking, the circle is the best geomantic geometry with 360-degree symmetry. Everyone who studies life science knows that ghosts and gods can reduce disasters, have directions and regions, and avoid specific directions and regions without disasters. They are all-round, symmetrical and decentralized, and have the function of degrading ghosts and gods. For the same material, the circle bears the greatest external pressure; At a certain edge and height, the visible range of the circle is the largest; The length and side length are the same, and the content area of the circle is the largest. The semicircle is also a circle, which has the function of turning evil into disaster.