Every aspect of life is a universe. The paradigm / governing thought controls how a person acts in a particular universe. Conflicting ideas fight each other in its own universe.
Everything: Our life consists of a lot of universes: meaning of life, sextual orientation, parents and children's needs, wants, and expectation of each other, dealing with other humans, dealing with laws, dealing with nature.... There are lots and lots of them. Hence, lots of universes.
Everywhere: Our mind and body thinks about and act in each of the universe in fractional seconds. So as we think or act, we are jumping among universes. Even though we do not see it physically, our minds are fighting each other in a particular universe just by thinking about it.
All at once: many meaningful ways to look at it. 1. All this is happening at all times in each person's life. 2. Explodes when conflicting thoughts materialize into action. Ex. Two people thought about how much they hate each other. Arguments/Fights will happen when they meet and discuss how much they hate each other. 3. When involved people CSIPed (Processed with Complete and Successful Intellectual Process) their thoughts about all of their conflicting thoughts in each universe. Their minds and souls converge and become harmonious in the corresponding universe.
Great movie. As good as Forrest Gump if not better.