Well here's a thing to ponder: Inside the universe matter exists as a flying wave form 99.99999999% empty space.
In between the universes all space is taken up by matter in it's original form. 100% full.
The atom is the a particulate expression of a wave form that exists as a single particle. The atom is self similar in holographic image to the universe.
The universe has a center and a spherical boundary made of the same stuff. The body in the center of the universe is the cause of dark flow. The bend of space time we are in is shape like a doughnut.
...and it moves like a flying serpent biting it's tail.
Matter is on the bottom half of the universe. Anti-matter or the local heaven is on the top half
What else would you like to explore?