“All his life Pope Gregory hungered after pure contemplation and he never really knew […] that God’s glory itself, unseen, goes into exile and lowliness, that precisely the descent from Jerusalem to Babylon, from the form of God to the Cross, is glory.”
 H.U.v. Balthasar, The Glory of the Lord: A Theological Aesthetics, J.K. Riches (ed.), B. McNeil et al. (trans.), Ignatius Press ed., vol. 4: The Realm of Metaphysics in Antiquity, London, T&T Clark, 1989 , p. 341.