God the Father is the brightness that hides glory within itself. And this glory conceals fire. This brightness is the Father's love. From it all things are born, and it also surrounds all things, for they draw from its strength. It is the Son who shines from the Father – the Son through whom all creatures were created.
(Hildegard of Bingen /1098–1179/, letter to Eberhard II, Bishop of Bamberg, 1163–64)