Answer:
Some live in me, some live on. And some shave me to stride upon. I rarely leave my native land. Until my death I always stand. High and low I may be found. Both above and below ground.
What runs around all day. Then lies under the bed. With its tongue hanging out?
What do you fill with empty hands?
I am a fire's best friend. When fat, my body fills with wind. When pushed to thin, through my nose I blow. Then you can watch the embers glow.
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.
Who makes it, has no need of it. Who buys it, has no use for it. Who uses it, can't see it. What is it?