Theists, are you immune to being decieved?

[Silver]

But how does one avoid being deluded with regards to what we mutually define as an accurate representation of reality?

By being smart enough to recognize cognitive dissonance for what it is, that maintaining faith in something merely for the sake of the good feelings it provides in a cruel world is no better than being a veritable brain in a vat. I would rather know the truth and be told the truth than to continue living a lie just because I am afraid of being too weak to face reality.