A rat, or rats, in your dream points up the fact that someone is very jealous of you and/or your accomplishments and will work against you in any way possible, it is a dream of warning to be on the alert for enemy attack, (the backbiting kind). If you see a white rat it means the same but you will have help from unknown forces. To hear rats running, or gnawing in the walls, shows that you have been wasting your time and should move on to greener pastures.