Answer:
I cost no money to use, or conscious effort to take part of. And as far as you can see, there is nothing to me. But without me, you are dead.
Ripped from my mother's womb. Beaten and burned, I become a blood thirsty killer.
As a whole, I am both safe and secure. Behead me, I become a place of meeting. Behead me again, I am the partner of ready. Restore me, I become the domain of beasts.
What breaks on the water but never on the land?
You can hold it without using your hands or arms. What is it?
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.