With fiction you can talk about plot character and narrative whereas a poem brings home the fact that everything that happens in a work of literature happens in terms of language. And this is daunting stuff to deal with.
Make the most of your regrets never smother your sorrow but tend and cherish it till it comes to have a separate and integral interest. To regret deeply is to live afresh.
If it is surely the means to the highest end we know can any work be humble...
I had never felt so lonely and so sad in my entire life.