I can't tell you where a poem comes from, what it is, or what it is for: nor can any other man. The reason I can't tell you is that the purpose of a poem is to go past telling, to be recognised by burning.
The great thing about being a writer is that you have a long, perhaps frighteningly long time in which to do your work.
As an actor we're just like workers in a factory, we provide our services to directors.