Why wouldn’t a soul be subject to the same cause / effect nature of the universe? Even if the universe was run by Greek gods, it would still follow this chain

Why wouldn’t a soul be subject to the same cause / effect nature of the universe? Even if the universe was run by Greek gods, it would still follow this chain of causality or be completely random. It seems like this applies to any thing you can ask “why?” of. Interestingly enough you run into a paradox because the chain of causality had to begin some where...which begs the question “why did time begin? What triggered it?”