Everyone knows that Christmas lights start popping up this time of year, but the real light show is the one caused by the sun as it makes its winter progression south toward the Tropic of Capricorn. The change in declination -- Mother Earth's little shift in front of the big lamp -- turns the world into a giant shadow puppet show this time of year. Starting in August, when shadows start getting longer, and winding up in the long, long shade of the Winter Solstice, the sun offers spectacular mood lighting. Here, a couple of young women waited for the train at Mission Station. They paced back and forth. It was too lovely not to grab my camera.