I do love Ps-Dionysius...

“Nor can any words come up to the inexpressible Good, this One, this Source of all unity, this supra-existent Being. Mind beyond mind, word beyond speech, it is gathered up by no discourse, by no intuition, by no name. It is and it is as no being is. Cause of all existence, and therefore itself transcending existence, it alone could give an authoritative account of what it really is.” (On the Divine Names, 1.1)

( Cut for possibly unreasonable amounts of Greek theology. But it's so _beautiful_... )

And now I must go on to Maximus the Confessor - who is also wonderful.