Answer:
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 has roots that nobody sees, and is taller than trees. Up, up it goes, and yet it never grows.
I am whole but incomplete. I have no eyes, yet I see. You can see, and see right through me. My largest part is one fourth of what I once was.
It flies when it's on and floats coming off.
I never was, am always to be. No one ever saw me, nor ever will. And yet I am the confidence of all, To live and breath on this terrestrial ball.
I have two eyes in the front and a lot of eyes on my tail