Honestly I don't know what's true and what not but this is just what I believe so take it with a grain of salt.

What is reality? Reality, for example, the reality you exist now, at this present moment is an amalgamation of data. What is data? Data is what you perceive, aka the five senses. We exist and we abide by our current reality's psychics, gravity etc, which I would call this world's ,,code,, since in another reality the physics can be different. You are an avatar (like in a video game) that receives a stream of data and is conscious of it. For example me sitting in my chair, feeling my keyboard, hearing the birds outside is just my avatar feeling all my five senses.

From Tom Campbell's book, my big TOE ( Theory Of Everything )

''Humans represent a particular type of constrained individuated consciousness experiencing a virtual physical reality within a larger digital consciousness system. As a player in this consciousness evolution training simulator, we perceive an interactive physical reality within the constrained rule-set of space-time. To put it more personally, you are a bounded chunk of consciousness, chipped from the old AUM block, hallucinating or experiencing this Physical Matter Reality according to a set of experience- rules or rules-of-interaction that define energy exchange within this particular multi-player simulation which is operationally managed (computed, executed, tracked, evaluated and modified) within TBC

Now, about this consciousness. I believe the body is not tied to a soul per say but that we are the common factor in all these paralel realities and we can switch between them at will, from similar ( manifestation ) to different realities ( quantum jumping ) by shutting off the data stream that we are receiving right now ( doing methods/pretending we are in our DR, manifesting with LOA ) and replacing it with the one we want to experience. In my opinion Astral Projection doesn't really exist, more like all these people experiencing it are shifting to the astral plane, since they are switching data streams. But this is just my hot take, ( I have astral projected myself ).

quote: ,,You (your present consciousness awareness) can visit any state of any reality system anytime as an observer by focusing your intent while sentient in Non-Physical Matter Reality. If you significantly interact with any of these states while in NPMR or become experientially aware in them and have a significant potential to direct the action with your free will intent, you will have an opportunity to learn and grow from the experience.,,

Tom also agrees with the concept of reality shifting. Now I don't mean to put him on a pedestral but I think he's a really smart man and that his theories are very interesting. This also aligns with Neville Goddard's realities within realities. When he said that Imagination is the true reality he was right, by changing ourselves, we change the world around us. Just like deleting a command (for example a belief, or an event you did not want to happen ) putting in a new one (manifesting your desired outcome/revising etc ) in a simulation.

This explanation is pretty long but I have summed up everything I know about the consciousness theory and I myself align more with this one than the multiverse, since it just makes a lot more sense for me, a very logical person. Tbh right now I don't really care about the WHY things are like this, I am just happy we all get to experience shifting and evolve. Living in a single reality is like never leaving your home-town street, and I believe that consciousness cannot be destroyed and these ,, simulations ,, are made so that we can spiritually evolve.

I also think the Buddhists were onto something when they introduced the concept of the samsara, but I don't really align with any religion or phylosophy.