Here's one guide to a prayerful Advent this year.
I find that guides help me with this, and with many other things.
That's Fra Angelico's (aka Fra Giovanni da Fiesole, aka Guido di Pietro) Adoration of the Magi. When you're in Florence, take the bus ride 20 minutes up the hill to Fiesole and see his little chapel and monastery. It's an active convent now, so they might not let you in. Our thanks to the BD art fiend and art-finder pupette (now Wall-Streeter but still art-finder) who turned us on to that chapel.
BTW, we think it's more fun to stay in the pastoral hills of old Etruscan Fiesole when visiting Florence. The bus runs until late, it's a quick cheap one-Euro ride, you get to ride with the locals, and the views are great. On our last visit, I think we only needed to use a cab once. Our pupette's Georgetown abroad semester was out of the old Rockefeller villa in Fiesole. Cool place. I should revisit those pics one of these days.