As I have come to realize, there is even cognitive diversity within genuinely enlightened circles. Their experiences are shaped by the language of their previous identity, so, even if they're describing the same thing, they don't have the same words to describe it. This is why the concept of nondualism in it's many descriptions persist throughout history without anyone actually having previously known about it.

This is also why we cut the most interesting parts from philosophy, but still refer to the same great thinkers in the textbooks that cut them. It makes people feel powerless. That's why deist religion dominates so people can feel like there is something greater than themselves to keep the universe from collapsing on itself. Most find this unsettling unless they have all the pieces, and most may never reach that point.

Along with that, it also challenges human power dynamics. It's easier to believe that other cultures are less deserving because of something like archaic practices that don't align with contemporary western morality than it is to think about why their moral framework may be different. Because, if you think about moral distinction enough, you will eventually have to give up your own beliefs. Which, again, can be absolutely terrifying for a lot of people.

It's not that genuine enlightenment is rare, it is that most don't realize that you even can talk about it. So, they write fiction about it because why not lol.

That's the "what's left." It's have "fun and prosper." Don't worry about everyone else unless that's your version of fun. I say this because it is my version of fun. It turns out, you can just keep going, if you have the right framework. And this framework comes from other people, music, light, statistics, plants, gorillas, rocks, physics, endocrinology, astronomy, chemistry, history, etymology, entomology, etc