reel off

When you realize you can really write, I mean you can reel off line after line effortlessly, that’s when you need to set some limits.

slippage

There is slippage in all poems, the language has its limits. It's like working on a sign-board with a bucket of moveable type. You're never sure if you'll be able to fit all the letters together properly and you're unsure whether or not you have the letters needed to make all the words you want to display (or say).

no absolutes

There are no absolutes when it comes to language.

not the territory

The poem is not the territory.

[Apologies to Alfred Korzybski.]