Answer:
I'm a type of pizza that is folded in half before cooking to contain a filling
In many years, not much has happened. In many minutes, a lot has happened. In one second, everything has happened.
The moon is my father. The sea is my mother. I have a million brothers. I die when I reach land.
Walk on the living, they don't even mumble. Walk on the dead, they mutter and grumble.
My voice is tender, my waist is slender and I'm often invited to play. Yet wherever I go, I must take my bow or else I have nothing to say.
You use it between your head and your toes, the more it works the thinner it grows.