I think a good poem should have some inscrutable part. You can't quite explain it. The poem can only explain itself to a certain limit and at that point you enter into a little bit of mystery. That for me is the perfect poem: to begin in clarity and to end in mystery.
Billy CollinsBut tomorrow, dawn will come the way I picture her, barefoot and disheveled, standing outside my window in one of the fragile cotton dresses of the poor. She will look in at me with her thin arms extended, offering a handful of birdsong and a small cup of light.
Billy CollinsBut some nights, I must tell you, I go down there after everyone has fallen asleep. I swim back and forth in the echoing blackness. I sing a love song as well as I can, lost for a while in the home of the rain.
Billy CollinsAs soon as I start to write I'm very aware, I'm trying to be aware that a reader just might well pick up this poem, a stranger. So when I'm writing - and I think that this is important for all writers - I'm trying to be a writer and a reader back and forth. I write two lines or three lines. I will immediately stop and turn into a reader instead of a writer, and I'll read those lines as if I had never seen them before and as if I had never written them.
Billy Collins