I was thinking just now, as I wrote this, that a verse which I have already quoted, Dilatasti cor meum,95 speaks of the heart's being enlarged. I do not think that this happiness has its source in the heart at all. It arises in a much more interior part, like something of which the springs are very deep; I think this must be the centre of the soul, as I have since realized and as I will explain hereafter. I certainly find secret things in ourselves which often amaze me -- and how many more there must be! O my Lord and my God! How wondrous is Thy greatness! And we creatures go about like silly little shepherd-boys, thinking we are learning to know something of Thee when the very most we can know amounts to nothing at all, for even in ourselves there are deep secrets which we cannot fathom. When I say "amounts to nothing at all" I mean because Thou art so surpassingly great, not because the signs of greatness that we see in Thy works are not very wonderful, even considering how very little we can learn to know of them.