Answer:
We are all around, yet to us you are half blind. Sunlight makes us invisible, and difficult to find
Halo of water, tongue of wood. Skin of stone, long I've stood. My fingers short reach to the sky. Inside my heart men live and die.
Held firmly in the hands, like a sword it cuts deep. Bloodless strokes, all, then forward we leap.
I'm the source of all emotion, but I'm caged in a white prison.
Vikings use this for warmth.
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.