To undress in a dream is to reveal your inner-most self. It represents a falling away of inhibitions and exposing your true self. It can be an act of total trust when done in front of someone who is close to you. Or it can be an act of vulnerability, leaving yourself exposed to criticism and judgment. In either case, it represents exposure of a part of you that was once hidden. If you are alone and undressing, it can represent a part of yourself that you kept hidden from yourself, that you are now revealing and ready to look at. Alternatively, it can be sexual or seductive.