When Keats says: 'Axioms in philosophy are not axioms until they are proved upon our pulses', what he means is that we don't necessarily believe what a poem is saying if it comes out and tells us in an absolutely head-on, in-your-face way; we only believe it to be true if we feel it to be true.

These places, and the ancient things you know, You won't know soon. I'm working on it now.'

You see the names of places roundabout? They're mine now, and I've turned them inside out.

The best public poems aren't necessarily those that go at the subject like a bull at a gate.