Not asking you to blindly accept this. Try Rudolf Steiner: An Outline of Esoteric Science. It will open your eyes to a whole new theory that is just as plausible as anything else.
Going to be honest though, dont have high hopes. These spirit things will become experimentally testable in time. Everything else has.
There are many observable truths outlined in the book mentioned. What makes a living thing “alive”? As soon as you die you begin to decompose. What makes you compose?
