Form is any aspect of a poem that encourages it to stay whole and not drift off into chaos.
Billy CollinsThis is not what it is like to be you, I realized as a few of your magnificent clouds flew over the rooftop. It is just me thinking about being you. And before I headed back down the hill, I walked in a circle around your house, making an invisible line which you would have to cross before dark.
Billy CollinsOften people, when they're confronted with a poem, it's like someone who keep saying 'what is the meaning of this? What is the meaning of this?' And that dulls us to the other pleasures poetry offers.
Billy CollinsPart of writing is discovering the rules of the game and then deciding whether to follow the rules or to break them. The great thing about the game of poetry is that it's always your turn - I guess that goes back to my being an only child. So once it's under way, there is a sense of flow.
Billy Collins