She shrugged. "Punch it, kick it, it doesn't really matter. All that matters is that you're trying to harm it. Not only might you harm it, but if your will is strong enough, you'll slow it down long enough for me to take some action. See, because it's a dual being it still has a presence astrally even when manifest in the physical world. It'll still be vulnerable to me, assuming I get the chance to do something."