Forget about that strange thing. The roof is triangular-pointed, which is already a kind of suffocation, and it needs to be resolved.
This strange thing looks useless, but it is shaped like a blade and can really be a kind of suffocation.
If it is close to your home, you may not be able to solve it with a mirror alone. It is suggested to hang a octagonal convex mirror outside your wall (definitely not inside the wall), and then put a pair of copper lions inside the wall (balcony, window or room). The bigger the mirror and the lion, the better, not too small.