12 Days of Advent: #6 Entertaining Angels

"Cherub and Lute,"  10 x 12 original watercolor, after Fiorentino. Cover of What Think Ye of Christmas?. 

Forget not to show love unto strangers:
for thereby some have entertained angels unawares.
Hebrews 13:2-3

C.S. Lewis has a famous quote where he posits that if we could see who our fellow humans truly are, and the divine potential they hold, we might be tempted to worship them. How can I see other humans through divine eyes, see the angels in their souls? What stranger can I reach out to today?