Do not wonder that I promise to fill it with those Truths you love but know not; for though it be a maxim in the schools that there is no Love of a thing unknown, yet I have found that things unknown have a secret influence on the soul, and like the centre of the earth unseen violently attract it. We love we know not what, and therefore everything allures us. As iron at a distance is drawn by the loadstone, there being some invisible communications between them, so is there in us a world of Love to somewhat, though we know not what in the world that should be. There are invisible ways of conveyance by which some great thing doth touch our souls, and by which we tend to it. Do you not feel yourself drawn by the expectation and desire of some Great Thing?