Let us step into the looking glass.
When we look at quantum "things" we are looking with particles. That is, we, because of the world we are in, can only send particles (such as electrons or photons) towards quantum things or events and then get back some kind of particle or particle traces that we interpret to mean such and such about what the quantum world is like. We don't see quantum things; we only see the result of quantum interactions with our "particle" world (Brillouin).
To me this is much like the looking glass, not the one in the bathroom but the one in the book. As we can go through this looking glass with our particles, unlike the bathroom looking glass where all our information heading in is sent back, it is more like the book. And when we go through the looking glass with our particles we find that things get reversed, like in the book. And we never know what will be reversed and we always wonder why. But, it seems, the reasons for the reverses will always remain on the other side of the looking glass.
Jerome Heath