I'm not talking about the kind of "shift" we go through as we live our regular lives, from moment to moment, or across a "quality" dimension (making your life more positive, more prosperous, more loving, etc). I'm talking about Hollywood-Style shifting. It's not like this is the first time I thought of this but this idea has been in my mind recently.

I was listening to one of Neville's lectures where he describes what people today would call a very vivid lucid dream. In it he was convinced that, even though it had started as a dream, if he did not consciously return to his former life he would remain there, and his body here would die. Perhaps he was wrong, but what if he wasn't? What if it is possible to enter into another dimension through feeling, not just to pass through it in a dream that fades quickly, but to stay there instead of here?

I have also heard people describe similar experiences of shifting to a parallel life (in a dream) and staying there for what they thought was several days. With full memory of their life in this world and no memory of things in that other world, just slowly integrating into it.

The reason I ask is because I was browsing Youtube and happened upon some videos by this girl, which filled me with a very deep sense of nostalgia for my youth (even though my actual youth wasn't all that great) and I find the idea of shifting to a reality in which I am younger much more appealing than trying to improve my life from where I am now. One day I will try this but I am not sure I am willing to risk investing the effort in something so absurd right now.

If I thought about this present reality as the past and the past as the present, and focused on that thought, immersing myself in it, would my reality shift?

If you thought you could do it, would you? In what way? How would you try to?