The combination of a Yin Yang symbol with the sacred symbols of the Eight Trigrams or Ba Gua diffuses the impact of killing chi aiming at your house. A bagua, with or without mirror, is a useful cure in Feng Shui. This octagonal tool is widely utilized for safeguarding against very dangerous energies (such as the killing energy “Shar Chi” created from “poison arrows” which are angled towards your home or workplace). These poison arrows come from many sharp-edged corners outside your home; lamp posts, buildings, t-junctions and other imposing structures. The types of issues that arise from this Shar Chi can be mild from arguments and tension, to the severe - sickness, accidents, and sometimes even fatalities.