Dreams involving unwanted strangers can often symbolize feelings of vulnerability or anxiety about someone or something intrusive in your life. The presence of the stranger in your home may represent an external threat or an aspect of yourself that you find unsettling.

Your mother's reaction could indicate a protective instinct or concern about your family's well-being. The act of the stranger kissing her might signify feelings of betrayal or a fear of losing control over personal boundaries. It could also reflect worries about changes in your family dynamics or relationships.

Consider reflecting on any current situations in your life that may be making you feel uneasy or threatened. It may also be helpful to communicate openly with your family about any concerns you have, as this can foster understanding and support. If this dream continues to trouble you, exploring your feelings with a trusted friend or therapist might provide further clarity.