Poetry in Motion is genius. Just a few beautiful words, but extremely influential to a person's psyche. Why? Its effects are transversal because poetry is so relational. Words are personal -- when I read little snippets on the subway, I can't help but ache to know the full story and the characters. (Poems are like little ellipses... you know there's always more to be said.)
Sure, it's also nice to be staring at something other than a cheesy ad on plastic surgery or accidentally making eye contact for too long with fellow passengers. But I bet you they're also thinking about the story behind the poem.