I don't ask for overwhelming evidence such as God must show up in front of me right now!. Some considerable tiny bit of physical proof that could demonstrate there is something outside time, space and matter, most likely a god. That would be enough for me. It would have to be testable over and over again, not just a mere speculation, something scientists could verify, just like they can verify all other hypothesis.
Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you