Sometimes you read a passage by a great writer, and you know what he says and how he says it will always be, for you, the only possible way it could be. Less often a painter will describe an event in a way that fits into your interpretation of that event so perfectly that it becomes the event itself.
No one but Gene Tierney could have played 'Laura.' There was no other actress around with her particular combination of beauty, breeding, and mystery.
I trust people who are violent about art, as long as they aren't closed-minded. But, unfortunately, most art blowhards are also art bigots.