Answer:
It cannot be seen, cannot be felt, Cannot be heard, cannot be smelt. It lies behind stars and under hills And empty holes it fills. It comes first and follows after, Ends life, kills laughter.
Give it food and it will live, give it water and it will die.
Who eats a lot of iron without getting sick?
Hold these between your knees if you want to set a Cuban beat.
I can move even when you are still. I can be one or many.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.