It looks like we have different concepts in our minds, Ali, if indeed I am reading your reply correctly that the universe is finite (in all its regards) and that this means that space is also finite.

If space isn't infinite, then it can be regarded as a true something. I do not regard space as such.

I regard space as a phenomenon; real and important but it is not a something. Just like emptiness in my wallet is real and important, but not a something by itself.

I believe matter came to exist when a fundamental separation occurred among prior energy. As you know, energy does not get lost, so we also do not need to find it. We can start out with energy.

Then, a fundamental separation in that energy occurred, meaning that parts got to be self-based; the collective reality then abandoned at the highest level.

Gödel already said this about 100 years ago. Matter likes to converge (become single masses), and we see this throughout the universe. But at the universal level itself, matter is divergent (or non-connected). For that reason, space is the largest reality in our universe and not even God can be as large as space.