Here's a story.
Imagine a jigsaw puzzle. But not any jigsaw puzzle. An unbelievably huge jigsaw puzzle that's been mixed up with other jigsaw puzzles. Some of them are really old and faded. Some of them are brand new. Some are larger and some are smaller. The edges change from jagged to smooth. Like everyone else at the table, you've been trying to put this one puzzle together for years, trying out numberless pieces until one day you realize that you don't even have the box for it. Like everyone else, you were told what it looked like when you were first sat down in this room and left to it. But you're not making any progress and the solution, the memory faded by time and others, doesn't feel right and you abandon it.
Now, you ask everyone around you about what the puzzle looks like. And they are all certain about what it looks like when it's finished, despite the fact that you know they haven't spent nearly enough time looking in the box, or the pieces, and you're pretty damn sure it's not a picture of your loved ones burning, a giant man creating smaller men, or nothingness.
And you start to talk with other people who don't believe in these solutions. They have their own ideas about the puzzle. The vast majority of them think the idea of a pre-solution is the problem. If only those who have been working on their own sections piece by piece were allowed to work together with their work corroborated by other piece-by-piece sectioners, without pre-solutionists telling them what it looks like, it'd be put together by now. You think this is the right course of action going forward. So you dabble in doing your own piece-by-piece work, keeping up with the latest pictures of the latest additions to different sections, published and funded by the people who originally sat you down at the table.
And everything is fine. For a while. Then you begin to see that the sectioners' works are being used to justify new pre-solutions by onlookers that aren't compatible with each other. Some sectioners are just producing pictures of themselves and their funders. And you realize that this just doesn't make any sense. None of it makes any sense. Not the pre-solutionists, not the sectioners. It's all a giant question with no authority and no one seems to realize how insane and un-ending the whole process is. Then you pick up a piece that changes everything. In it you merely see the Self and your own reflection in it. But it changes everything.
You look up from the table and see through eons. You see everyone who has ever been sat down at this puzzle table. You see the same people wearing different costumes as the endless passage of time flows. You see the same puzzle processes and sections arising, maturing, then being scattered. You notice this and infinite other things, lost to the ephemera of cognition and memory. Then the pieces fall into place in your brain. And you see that it isn't a puzzle. It was never a puzzle. You realize in your vision that there were countless people throughout time who stood up from the table. And they saw a door and went through it. And came back. And they said in exaltation in the plurality of dialects and tongues that this is not a puzzle. It is a map. A map to exit the room. These chosen few make a new map of the room, offering it triumphantly to the rest. Some see it and in turn stand up and leave the room to go outside. Others follow. But the stream of people slows and stops. The map is left, abandoned by those who followed it to those that didn't or couldn't. And those remaining beings slowly rip it apart, piece by piece, to fit in their view of the puzzle until it too resembles... a puzzle.
You proceed to come down from grasping this piece, realizing the truth of what you have seen; That this in fact a massive collection of old, incomplete maps, made puzzles by mankind, all showing the way to a door that leads to outside the realm of the puzzle. So you stand up from the table, go to the exit, and open the door. And there it is. Outside. The Sun. Indescribable to anyone who has been left inside the cave their entire lives. This is so apparent to you that it is the very definition of self-evidence, bound with knowledge ascertained by pure observation. And you realize that nothing, absolutely nothing can erase the certainty that outside and the Sun exists, having been there. You now have a decision to make. In an act of compassion, you return to the room and proceed to draw yet another map for those left behind...