You got it. Each one provides building blocks for an even bigger one. Altogether, we get the universe. Do we then have multiple universes forming an even bigger, impossible to think of, structure? I think not. This is where the loop comes in, or perhaps - oh don't want to go there today.What I mean is like the solar system has planets revolving around a star and in atoms there are electrons revloving around protons and neutrons.
Keep thinking, please.