The idea that there is nothing beyond what science shows is very, very much against the way science works.
Tthe idea that quantum physics shows that the universe is not 100% predictable proves anything at all about the existence of the soul is a more than quantum jump.
And the idea that the stuff experienced at the point of death evolved to comfort the psyche assumes that evolution gives a rat's ass about a psyche that isn't in a position to be a tool for reproduction either directly or by supporting relatives or the village.
I do have an idea about there maybe being some biology underlying the Hero's Journey, but I don't feel like going into that right now.