I suited up early this morning, intending to be out the door well before 7. I know that my daytime minutes start at seven a.m., and that any call that starts prior to 7:00 gets entirely counted under night and weekend minutes.

Jody lives in Atlanta, and works the overnight shift. I don't call him as often as I should, but the timing of our lives means that he is finishing up his day as I am readying to start mine. I take a perverse delight in making sure my calls to him start just a couple of minutes before 7, with earpiece tucked securely in my left ear as I drive.

Over the years, I've asked myself many, many times why I do this. Why I feel this need. Why, at random times, it galvanizes me into packing a bag, calling up a few friends, and bartering cooking experience for crashspace.

Other people call it "wanderlust." That's probably as accurate a term as I'm ever going to find.It's best described as a quiet ache—of looking at the same four walls and knowing that you've looked at them before. Knowing that you've explored them from top to bottom, inside to out, and that there's not much left to discover.