A work of art is a catalyst for our perceptions.
When we see or hear or experience a work of art it makes us see or hear or experience the art not as a thing but according to the thing. The art has an effect on us and our manner of perception.
So too do people with whom we are in relationship make us see them (insofar as we see) according to them.
So too is our relationship to God: we see the world according to His being in it.
This facility to see both the thing and according to the thing is a measure of the depth of our perception, which depth is a manifestation of our seeing both the thing and through the thing. The depth, the seeing through, is implicit in our perception and cannot be explicit.