The Illusion of Shelter in a Poem

I'm struck that shelter is both a noun, a thing we have or wish for and also a verb. He talks about risking words. There's many risks in this poem, but I wonder how you think about risk in a poem. And he calls it the illusion of shelter, but then also that somehow they're also closer to poetry's pursuit. It's not the distance that upsets him, it's the closeness.