There are three kinds of mirrors commonly used in geomantic omen: flat mirror, convex mirror and concave mirror. The plane mirror can change the direction of qi energy, and the convex mirror can make qi radiate in different directions, which has the effect of exorcism. concave mirror can collect qi in all directions and has the effect of Naji.
Pay special attention when placing mirrors in the bedroom. Don't put the mirror on the bed, which has a considerable impact on people's health and the harmony of husband and wife's feelings. It is a taboo in bedroom layout. In geomantic omen, the mirror is anti-evil, but when people sleep, their energy drops and their resistance drops. But it is obviously very inappropriate for the mirror to reflect the evil spirits on the bed, which will harm people's health. This is a taboo in bedroom geomantic omen.
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