->How our universe is created in the first place?
The answer can't be found in the vastness of spaces. To understand the universe we have to understand the behavior of material of very small scale, atoms and things smaller than that, which make everything in the universe.

->How small is atom?
Ancient Greek first to say everything is made of single irreducible matter called atomos today known as atom.

->Here are some analogies:
-Atom is to an apple as apple is to our Earth.
-Human hair is 300 thousands atom across.
-There are billion atoms in a full stop.