Answer:
My tongue hangs out as I run over fields and streets all day. I get tied up every morning and untied at night.
You use a knife to slice my head. And weep beside me when I am dead.
I march before armies, a thousand salute me. My fall can bring victory, but no one would shoot me. The wind is my lover, one-Βlegged am I. Name me and see me at home in the sky.
They can be harbored, but few hold water. You can nurse them, but only by holding them against someone else. You can carry them, but not with your arms. You can bury them, but not in the earth.
It happens when something has been cut with H2O.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?