It takes 15 lines for a poem to make a reader say "this poem sums up life." Fewer lines can make an impact--- a reader might say to himself, "amazing."--- but it will be a jewel held by a case, not the case and the jewel--- a poem so much like life who the hell needs school? Much more than 15 lines and the poem will be a story and it might be amazing, too. But it will have many details. It will be long. It won't be what I want to say to you. Arguments and meditations will intervene. You may fall asleep reading chapter 4. 15 lines is the holy grail. The professor shocks you in the mist. He's not a professor. "Stop! You don't need to read anymore."