They say you can't step into the same river twice, and I guess that's true for the sidewalks in the neighborhood as well. The time of day shifts, and the sunlight sifts through different branches of the tree up ahead. Something new is being built and something old is getting torn down. The crepe myrtle is covered with blooms; now the petals lay strewn, confetti atop the grasses. The dogs are hoping for some excitement; then nap on the front porch. The mailbox next door is silver; now it's painted forest green. The lemonade stand is up, now it's not, now it's up again. You turn around, and the kids are all grown up.