What does it mean when you dream about a black wolf guarding you?

The dog is a symbol of some issue you are fighting. It seems you did not choose this struggle, but it feels to you as if you were attacked for no reason. The dog might represent a single person or a group or simply a situation you find yourself in. Being big and black only emphasizes your anxiety; after all, your mind wouldn't illustrate a difficult issue with a small brown-and-white dog. Seriously, your dreams are much like Cartoons in that images are metaphors that express their meanings on an emotional, instinctive level. Dreams also exaggerate, so you need not worry about your ability to overcome this problem.