Philosophers of old have not been able to prove the existance of that which everyone can see and touch. With that mindset we could never prove anything in the the physical realms or in the metaphysical realms. We are not trying to prove the existance of the metaphysical rather we are working there to build that which we are called to build. If you are familia with the ancient story or Noah & the ark it is something along these lines. However, we are not building a vessle to deflect but rather tools to endure that which may come next.