Earlier quoted context omitted.
Possession is a physical/real property of the universe. Ownership is a legal abstraction/construct.
Being allowed to possess something (instead of being drug off kicking and screaming by the cops) is also a societal/legal construct.
We've redefined what "taking good care of something" means for things you possess, and we made elaborate social/legal constructs to clearly define boundaries of possession.
But this is present even in the animal world, even when it comes to "property" (wolfs mark their territory, so do lions, bees go back to their own hives, etc).