In the beginning, there was nothing. There was nobody. All there was was a blank space, empty, free of the boundaries of time and reality. The same space is in some parts of your head.
A place for an idea.
There it was. The idea, thought up by someone or something, some celestial being we know little to naught of. But it was there, and it was moving fast. Out of nothing blossomed something beautiful, a universe. Now, you may know this universe as literally all that we know. But... you may be surprised at what little you know about reality. In fact, when the blank space was filled, it was filled with not one, but two ideas. One for our universe. And one for theirs.
“They” are the inhabitants of the other universe. You know how you have these different parts of your head, one section for practical, necessary thinking like how to get from point A to point B and one for all your daydreams, your crazy wild ideas, and random thoughts? Well, that’s a lot how the universe is. I mean universes are. Sometimes, when you’re trying to think about something important and normal, like a math question, and you’re focusing hard, and you almost got it... but then you think, what if snow was warm? and there goes your concentration. That happens in our universes too. sometimes a wisp of the other will slip into the next accidentally, and we just have to deal with the insanity of it all. The wisp is the thing that makes people do crazy things, some light-hearted, but others darker, more insane. This is the full story of the two universes that exist, beyond the doubt of the average mind. This is what happens when worlds collide.