I used to be stone deaf. I would see people stand up and go through all kinds of gyrations. They called it dancing. It looked absurd to me -- until one day I heard the music!
~ from THE SONG OF THE BIRD by Anthony de Mello
What remain constant in every account of angels, from ancient days to the present, is that they are both messengers and companions to humans, sent from a realm beyond usual seeing. Angels appear, and in one way or another, help us, advise us, inspire us, or amaze us.