To look on the glass is to perceive the “thisness”, the intense reality, of each thing; to look through the glass and so to “espie” the heaven is to discern God's presence within and yet beyond that thing. These two ways of looking at the world confirm and complement one another. Creation leads us to God, and God sends us back again to creation, enabling us to look at nature with the eyes of Adam in Paradise. For, seeing all things in God, we see them with a vividness that they would never otherwise possess.
