Dreaming about an intruder symbolizes someone or something that has interfered with your peace of mind by forcing a situation upon you.
Seeing an intruder breaking into your house or hurting you or someone else can be a very frightening dream.
Depending on the level of fear this dream is, at times, a nightmare. The intruder breaking the law or breaking into your house may be representation of an unconscious part of your psyche. Carl Jung called the negative forces the “shadow.” The intruder may be a symbol of your guilt and self-indulgent attitudes or behaviors.
On the other hand, it may represent the more negative side of your nature. If you had a fearful real-life experience with an intruder through this dream you may be reliving that experience and hopefully letting go of the fear.