I'd compare it thematically to "Man from Earth" (though that was far better). I have to commend the filmmaker for trying something.
I found it a bit preachy. It touched on ideas that I find distasteful.
Still, it challenged me a bit.
It touches on anti-technology, religion, good and bad, self-interest, capitalism, eastern spirituality, commerce, pride of work, homelessness, wealth inequality, justice, afterlife, suicide, "love", punishment and reward, simulation theory, a "God" that is not all-powerful, a vengeful god, heaven and hell, the mutability of facts. Unfortunately the movie makes some presumptions while exploring these ideas, and does not acknowledge all sides of the ideas that it touches on. At some point it becomes an apology for human suffering under an altruistic god, and at a different point it mirrors the Unabomber's view of technology. It's all over the map with its religion, is it hindu? it is christian? is it buddhist?
Frankly, the thing is a mess, most of the mechanisms and drama were contrived, yet I am not unhappy that I watched it. I don't think it is anywhere near a masterpiece, nor do I need to see it again.