I don't think this will go anywhere ate. I don't think you can give the strictly defined word choice that some members will require for understanding within the scope of what you're talking about.

Its rough, because I think I'm sympathetic to what you're trying to say, but even I take a step back and think that you might be confusing insight for enlightenment.

In answer to your original query, I think the higher plane idea is a lot like gods and demons and all that good stuff. Meant to make a point, but not necessarily to be taken literally.

The evolution of enlightenment. Eventually things get better on their own...? I wonder.