Feng Shui Bagua Mirror for protection against passive negative energy.
- The trigram for Heaven, called Chien (three solid lines), goes at the top and the trigram for Earth, called Kun (three broken lines), goes at the bottom.
- Buildings near graveyards, bridges, railroads, or overpasses, or those at a T-intersection or with a large tree bocking the entrance, are said to be at a disadvantage from "poison arrows" of sha that damage those inside the dwelling or place of business.
- To protect against, and counteract, bad luck caused by arrows of sha, Feng Shui practitioners invoke the eight trigrams or Bagua of Early Heaven, an ancient Chinese arrangement of eight binary symbols comprised of solid or straight (yang) lines and broken (yin) lines that represents the unity of Heaven and Earth and the blessings that acrue from alignment with natural virtue.
The mirror has a blue protective film.