Days of creation / Scivias (Hildegard)

[Koen G]

so a reference to the universe and not Christ

Hildegard's visions have little to do with the universe though. Each element she includes is carefully placed so in a way that supports Christian doctrine.  This site that Marco linked earlier is quite eye-opening: You are not allowed to view links. Register or Login to view.

It's not just that she explains the medieval perception of the universe in the light of Christian doctrine. Rather, she deviates from standard models of the universe to construct something that aligns with scripture. 

Just an example from the site (translated from German and a bit wonky at times):

"The whole universe points to the  almighty and incomprehensible God. The outermost layer of fire signifies God's twofold work: fiery vengeance against the unbelievers, consolation for believers. The great fireball of this layer is the sun, which means the only begotten Son of God, the sun of righteousness. Three lights, three planets, stand over this sun, in the mystery of the Trinity . The winds in this layer indicate the true preaching."