"That's not a revelation, Jim. That's an epiphany."

[ Which amuses me most because of how many people assume it's Spock to Kirk, when in fact it was Beckett to Joyce. ]

Epiphanies are damned hard, because while there is an underlying mental process, it's not something I'm used to thinking of as consciously accessible, and also because it happens so much faster than one can describe it - in terms of a set of things suddenly falling into a new pattern, for example.