In the Middle Ages, a favorite image that occurs in many, many contexts is the wheel of fortune. There’s the hub of the wheel, and there is the revolving rim of the wheel. For example, if you are attached to the rim of the wheel of fortune, you will be either above going down or at the bottom coming up. But if you are at the hub, you are in the same place all the time. That is the sense of the marriage vow—I take you in health or sickness, in wealth or poverty: going up or going down. But I take you as my center, and you are my bliss, not the wealth that you might bring me, not the social prestige, but you. That is following your bliss.