The dancing dust of a sunbeam also glimmering as a mirror hall for fireflies.  What a bright image. 

‘A light-stream interplay, a mirror hall

For fireflies…’ (Paradise, Canto 22)

See also our illustrated quote-rich celebration of Dante’s Divine Comedy in Clive James’ superb translation. 

Source: Dante, The Divine Comedy, trans. Clive James (New York: Liveright Publishing, 2013), p. 463