The various universes in our multiversal shell are linked together by “fibers” much like those that form during cellular mitosis. These fibers are the time space singularities, wormholes and things like that. These singularities keep our multiversal atom intact.
If we artificially create a wormhole can things from another universe come here? Another iteration of our universe, yes. One of the ripple universes could bridge that way, but not one foreign to our multiversal atom. In order for that to happen naturally you would need something like what people call the big bang. But bridging between these multiversal bodies is still possible otherwise. There is a sort of weather between multiversal bodies, and the equivalent of solar wind can bring two multiversal atoms closer together.
Now each multiversal body has a frequency, a vibration all its own. When two multiversal bodies come close to each other, a sort of third vibration is set up, and elements of each of these multiverses can cross over, even perhaps accidentally. So it is possible that our first contact may not be with something from our universe or even a parallel universe, but instead an “alien” multiverse. Interphase threshold events.
Could this be something that personally affects us fairly often without us realizing it? Yes. It’s fairly common, but perhaps fortunately our brains likely make sure it goes unnoticed. But it would still register on our neurons on the quantum level.
What about in dreams? Oh, these phenomenon are quite common in dreams really. This is a big part of why we often don’t remember our dreams. Sometimes there is literally no translation for what you remembered in the dream. It’s not absolutely impossible to remember. Of course, it can begin to make material reality look pretty weird as configuring your consciousness in that way alters how you perceive matter, time and space.
Your thoughts are welcome. Be well friends.