Yeah, I think the common denominator - and this is probably going to sound like Acting 101 - but the common denominator is belief in the character in the moment. ↗
He did not seek to assume the mantle of Elijah, to shed a light of the future upon the misty turmoil of events or resolve the prevailing light into a single flame; there was in him nothing of the prophet or the mystic. He was a simple soul who loved, and that was all. ↗
The harm which is done by credulity in a man is not confined to the fostering of a credulous character in others, and consequent support of false beliefs. ↗