Against them make ready your strength to the utmost of your power, including steeds of war, to strike terror into (the hearts of) the enemies, of Allah and your enemies, and others besides, whom ye may not know, but whom Allah doth know
I like René Descartes' theory about a ball of wax. You can change its form from solid to liquid, but it's still the same ball of wax. With acting, you are the same person in a different form. You can only be what you know, and you only truly know yourself.