Answer:
What has to be broken before it can be used?
One by one we fall from heaven down into the depths of past, And our world is ever upturned so that yet some time we’ll last.
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.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
I scribble forms of the finest letter, And repel elements of the harshest weather. I am an arrow-aimer and a dust-breaker.
What language does a billboard speak?