10.8.15   Great is this force of memory, excessive great, O my God; a large and boundless chamber! who ever sounded the bottom thereof? yet is this a power of mine, and belongs unto my nature; nor do I myself comprehend all that I am. Therefore is the mind too strait to contain itself. And where should that be, which it containeth not of itself? Is it without it, and not within? how then doth it not comprehend itself? A wonderful admiration surprises me, amazement seizes me upon this. And men go abroad to admire the heights of mountains, the mighty billows of the sea, the broad tides of rivers, the compass of the ocean, and the circuits of the stars, and pass themselves by; nor wonder that when I spake of all these things, I did not see them with mine eyes, yet could not have spoken of them, unless I then actually saw the mountains, billows, rivers, stars which I had seen, and that ocean which I believe to be, inwardly in my memory, and that, with the same vast spaces between, as if I saw them abroad. Yet did not I by seeing draw them into myself, when with mine eyes I beheld them; nor are they themselves with me, but their images only. And I know by what sense of the body each was impressed upon me.