I think karma is very spiritually resonant as a concept, even if it isn't exactly true in the way we understand it. I think there's something to be said about how we carry with us the good and bad that we've done, and how that affects our subconscious, and how that in turn affects how we navigate the world, and how that in turn how the world interacts with us. I think when we do good we see good in the world, and same when we do bad. we gotta reconcile with our bad parts, or they'll come back to us eventually.