4 kinds of twoness, of a single, 3D phenomena.
http://www.rwgrayprojects.com/synerg...igs/f7310.html
One single, individual Universe----Uni = one.
However, I use the term "U"niverse for a concept that is the most comprehensive set;
"U"niverse / "G"od
...1a}
metaphysical-1, mind/intellect/concept i.e. concepts of God, Universe, Mind, Space, Finite, Infinite, Dogs Cats etc....
-------------line of demarcation---------------------------
1b} metaphysical-2, macro-infinite non-occupied space,
1c} finite,
occupied space, Universe
....1c2}
fermions,
bosons and any aggregated there of aka
physical/energy aka Observed Time
^v
...1c2}
gravity---Space ( ),
....1c3} dark energy ----Space )(.
r6