You know what my definition of the shadow-side, or shadow-self is? It is the limiting beliefs that you harbor about you and your place in the world that inhibit you, keep you small, and prevent you from living fully and expanding like the righteous human you are. You see, we humans are meant to expand and grow and when you have limiting beliefs that inhibit that growth, you are going to feel frustrated and unfulfilled, which can result in lashing out.