Unprovable means nothing except in science. Experiencing it and grasping it’s importance, understanding, can’t, of course, be “proven”.

I don’t need it “proven” because it’s something I grasped the meaning of, understood it many years ago and believe it or not, the world (universe, God, the ALL, Mother Nature, Gaia or whatever name one chooses to call it) does, in fact, work toward what’s best for you. If you have a ‘lucky break’ that wasn’t “luck” it was (see name choice above) working in your best interest. If you have what your see as a setback then that was another example of (again, your choice of name) was again working in your best interests because you have no way of knowing the ultimate outcome of not getting what you desired.