Whatever kind of creature that pesters you would qualify as a pest. This includes ants, rats, mice, roaches, spiders, snakes, etc. These are commonly labeled “pests” because they are considered to be nuisances. However, from a symbolic perspective, these creatures have a lot of wisdom to share. Aside from whatever potential damage they may do to a physical house – these critters can provide a lot of messages and meaning to our philosophical life (if we take the time to observe and listen).