Answer:
Steals an event or even a mood. Reveals the truth or shatters it.
You use it between your head and your toes, the more it works the thinner it grows.
Who is that with a neck and no head, two arms and no hands? What is it?
I saw a strange creature. Long, hard, and straight, thrusting into a round, dark opening. Preparing to discharge its load of lives. Puffing and squealing noises accompanied it, then a final screech as it slowed and stopped.
What is it which builds things up? Lays mountains low? Dries up lakes, and makes things grow? Cares not a whim about your passing? And is like few other things, because it is everlasting?
I am your mother's brother's only brother in law. Who am I?