Answer:
What zips through the sky with a tail of fire and dust. It could be an omen, its origin to discuss?
In we go, out we go. All around and in a row. Always, always steady flow. When we'll stop, you'll never known. In we go, out we go.
A mile from end to end, yet as close to as a friend. A precious commodity, freely given. Seen on the dead and on the living. Found on the rich, poor, short and tall, but shared among children most of all.
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.
Hoofed frolicking.
What did the piece of wood say when he saw the screwdriver and screws approaching?