How does Poetry Work?

For me it involves writing something really good (Caliban Trashing Ariel) and then losing it. I was hoping to find the typed text for CTA and OCR it but I can only find the hand written stuff with the crossings out etc. I would like at some time to write a neural net and train it to recognise my handwriting but thats for another day after the complete MandelBrot/Julia set display program and the the random midi to tunes stuff. Anyway - enough of bad polymathematics. Why the title? I found a book yesterday and that was what it was called. Simple really.