Since ancient times, there has been a saying that dogs can communicate with ghosts, so many people think that keeping a black dog at home can ward off evil spirits. Although this statement is a bit exaggerated, there are still many people who would rather believe it than believe it. However, it should be noted that a black dog refers to a dog with a black body and cannot have a trace of noise. So how about keeping a dog at home for feng shui? Keeping a dog can ward off evil spirits, so it is generally good.