Answer:
What is it that makes tears without sorrow. And takes its journey to heaven?
What can fill a room but takes up no space?
Whoever makes it, tells it not. Whoever takes it, knows it not. Whoever knows it, wants it not. What am I?
I turn everything around but I cannot move. When you see me you see you!
As a stone inside a tree, I’ll help your words outlive thee. But if you push me as I stand, the more I move the less I am.
No matter how little or how much you use me, you change me every month.