sorry if this is irrelevant and/or belated:
Erwin Panofsky, "Abbot Sugar of St-Denis", from _Meaning in the Visual Arts_ on
the influence of Pseudo Dionysius and the "anagogical approach" of Plotinus and
"Marvel not at the gold and the expense but at the craftsmanship of the work.
Bight is the noble work; but, being nobly bright, the work
Should brighten the minds so that they may travel, through the true lights,
To the True Light where Christ is the true door
The dull mind rises to truth, through that which is material
And, in seeing this light, is resurrected from its former submersion"
-Abbot of Suger.