brain
sees?

That no man knows, and, perhaps, never will know in this world. For
science, as it is called, that is, the understanding of this world,
and what goes on therein, can only tell us as yet what happens, what
God does: but of how God does it, it can tell us little or nothing;
and of why God does it, nothing at all; and all we can say is, at
every turn, "God is great."

Mind, again, that these are not all the wonders which are in the ear
and in the eye. It is wonderful enough, that our brains should hear
through our ears, and see through our eyes: but it is more
wonderful still, that they should be able to recollect what they
have heard and seen. That you and I should be able to call up in
our minds a sound which we heard yesterday, or even a minute ago, is
to me one of the most utterly astonishing things I know of. And so
of ordinary recollection. What is it that we call remembering a
place, remembering a person's face? That place, or that face, was
actually printed, as it were, through our eye upon our brain. We
have a picture of it somewhere; we know not where, inside us. But
that we should be able to call that picture up again, and look at it
with what we rightly call our mind's eye, whenever we choose; and
not merely that one picture only, but thousands of such;--that is a
wonder, indeed, which passes understanding. Consider the hundreds
of human faces, the hundreds of different things and places, which
you can recollect; and then consider that all those different
pictures are lying, as it were, over each other in hundreds in that
small place, your brain, for the most part without interfering with,
or rubbing out each other, each ready to be called up, recollected,
and used in its turn.

If this is not wonderful, what is? So wonderful, that no man knows,
or, I think, ever will know, how it comes to pass. How the eye
tells the brain of the picture which is drawn upon the back of the
eve--how the brain calls up that picture when it likes--these are
two mysteries beyond all man's wisdom to explain. These are two
proofs of the wisdom and the power of God, which ought to sink
deeper into our hearts than all signs and wonders;--greater proofs
of God's power and wisdom, than if yon fir-trees burst into flame of
themselves, or yon ground opened, and a fountain of water sprung
out. Most people think much of signs and wonders. Just in
proportion as they have no real faith in God, just in proport