A shadow. The dark – always the dark side of a person. It can be another word of the unconscious part of a person. The bit that nobody has control over and that shows their true self. As you can’t control this, it could represent a person who has nothing artificial like make up, clothing, an act etc. Which could be used to hide insecurities. Therefore, it’s dark, uncontrollable and shows insecurities.
You see my shadow; therefore I am.