Answer:
They're up near the sky, on something very tall. Sometimes they die, only then do they fall.
What do you throw out to use and take in when you're done?
Iron on a mammal. Mammal on your feet.
You saw me where I never was and where I could not be. And yet within that very place, my face you often see.
I have split the one into five. I am the circle that few will spy. I am the path that breaks and gives. I am the bow no man may bend.
What is so fragile that saying its name breaks it?