It's very hard to ELI5 quantum mechanics. The only thing we can definitively constructively say is that we have a mathematical system that describes the universe very well at certain time/energy/distance scales. Trying to ascribe meaningfulness to this math is an ongoing struggle.

Aside, the terms "spooky" and "weird" are used to describe phenomena that "have no classical analogue." Physicists don't agree on what Schrödinger's cat means. I find that it muddles more than it clarifies.