These insects embody resentment, fear, and disdain toward others. If you dream that they invade the house, it means that you dread rumors. Flies also may symbolize repressed impulses and desires. Because of the association of flies with filth and disease, you may also interpret this dream as a message from the unconscious telling you to take care of your health and clean more. In the same way, an annoying buzzing fly could indicate the existence of a restless, irritating person in your life. If you are the fly, you should ask yourself if you are butting into other people's business too much. According to popular tradition, to see flies in a dream is a sign of success. However, to see them in food is a sign of danger.