Answer:
Vikings use this for warmth.
I am mother and father, but never birth or nurse. I'm rarely still, but I never wander.
Bury deep, Pile on stones, My mind will always Dig up them bones
I have two hands but cannot clap
What do you throw out to use and take in when you're done?
Iām grown from darkness but shine with a pale light. Very round I am and always a lady's delight.