Last night, I noticed something out of the ordinary while at work... there was a luminaria on the road adjacent to the property:
Each of those lights is a paper bag, weighted with sand, and illuminated from within by a small candle:
Luminaria commonly decorate Roman Catholic churches serving Italian or Latino congregations on Christmas Eve, but this particular luminaria isn't near a Roman Catholic church, and a quick check of the liturgical calendar indicated that yesterday was the Feast of St Agnes, which is associated with the blessing of lambs (agnelli), rather than a luminaria.
Poking around the t00bz, I found a possible reason for this display of lights- luminaria are now associated with the American Cancer Society's Relay for Life. Discovering this probable connection made me a bit melancholy- to think that this unexpected, beautiful display most likely represents someone's loss to scourge of cancer is sobering. Let's hope that President Obama's call for a more aggressive fight against cancer leads to something more positive.