Answer:
Reaching stiffly for the sky, I bare my fingers when its cold. In warmth I wear an emerald glove and in between I dress in gold.
It regulates our daily movements, but it feels no interest in our lives. It directs us when to come and go, but does not care if we pay attention. What is it?
Fatherless and motherless. Born without sin, roared when it came into the world. And never spoke again.
I have a neck but no head. I have a body but no arm. I have a bottom but no leg.
A hill full, a hole full, yet you cannot catch a bowl full.
You use it between your head and your toes, the more it works the thinner it grows.