Probably echoing Saint Paul in Philippians 2:15, Saint Hildegard von Bingen writes about stars in the night sky to a fellow abbess:
In the same way that the stars illuminate the sky at night, God made humanity to sparkle. We’re created for maturity. We’re made to give out light like the sun, the moon, and the stars.
It’s not hard to read a theme of Transfiguration in Christ into these words. “To sparkle” isn’t exactly an activity in itself, by which the human being does a particular, singular action. It’s more about the visible essence of the star itself. It’s one thing to say “to heat” or “to give us light”; it’s another to describe what it is about the nature of stars in themselves.
Transfiguration in Christ engages visibility, for when the body and all its visibility is taken up by the Spirit, who is by essence invisible, a kind of transmuting or transformation of human living, human appearance, and human visibility are involved. The interplay between normal visibility and That which is normally invisible results in something seen. In fact, in Eastern Christianity, this is often compared to the Transfiguration of Christ: here we have Transfiguration in Christ. And if this is not exactly what Saint Hildegard meant, at least it is one useful thing that can be drawn from her words. We were made, through humility and being taken up by the Spirit, “to sparkle”.