It seems naturally enough to say that
we live in the physical world.
Here's all of us.
We're walking around in this physical world here, right?
But to say that, is a conventional point of view.
That is a convention of our existence
to think in those terms,
to presume in those terms.
We say things like, "There is this external world,
and I am me,
you are you,
there's the universe."
We say things like this.
All we need to do is (all we need to do is)
to really consider, to really observe
our condition,
fundamentally.