Huh?

A hand is shown palm-up, then the scene cuts to a firework exploding in a twilight sky over a city street with traffic lights and buildings. The hand reappears as a silhouette against the darkening sky. The sequence continues with a close-up of green leafy vegetables in a field, followed by hands pressing into a ball of dough on a floured surface, and ends with a view of feet in sneakers standing on a wet, sandy shore next to water.