Satan tempts us at the point of our physical needs, not that we might gratify them to excess, but that we might think of nothing else, and satisfy them at the expense of our usefulness in the world.
Satan tempts us at the point of our ambitions, not that we might engage in positive evil, but that we might simply accept the fact of evil, learn to live with it, come to terms with it, and maintain a quiet reverence in the presence of it.
Satan tempts us at the point of our religion, not that we might disbelieve in God, but that we might demand certainty, that type of certainty of God that leaves nothing to faith, nothing to God himself.