Can curtains block the evil spirits?

Can curtains block the evil spirits?

In terms of feng shui, if there are sharp corners outside the window, it will produce evil spirits. The easiest way to reduce evil is to hang curtains. For example, the Roman curtain pulled up can block the evil spirit of the "water" in the north; the aluminum venetian blind can block the "wood" evil in the east and southeast; the water wave curtain can block the "fire" evil in the south. Man-made fiber curtains can be used for the "golden" evil in the northwest, and wood venetian blinds are used to block the "earth" evil in the northeast and southwest.