I finished the Netflix series "The OA" 2 days ago. I found it beautiful and brutal, illuminating and infuriating. We are confronted with two possibilities, either her story is true, or it is false. Our rational understanding of the world would lead us to believe that the story is false; the over-all force of the narrative wants us to believe it is true. For it to be true requires a leap of faith... in OA's honesty as well as her sanity. It would be a ridiculous truth but it would justify everything, make everything meaningful. The other alternative is that she is delusional, and that the five got trapped in a cult of sorts, which makes the whole thing so cruel.
The way the story has ended is deliberately ambiguous, it could be either way. It's Schrodinger's cat. Reflective of the ambiguous reality of our own existence... there may be nothing but atoms and the void, or there may be something transcendent. We don't know, and therein lies the anguish.
It appears that the question of whether the show would have a season 2 is an open one. I don't know how the story can progress further without collapsing this uncertainty. We would gain something, no doubt, perhaps some well-needed consolation of the truth of OA's vision, but we would also lose the illuminating and infuriating ambiguity.