Don't explain why it works; explain how you use it.
Because here’s the thing: No matter how much one tells stories of magical beasts or impossible worlds, in the end, it is always the world of here and now one is writing about. The better one understands that world, the more powerful the stories will be.
One nice thing about putting the thing away for a couple of months before looking at it is that you start appreciate your own wit. Of course, this can be carried too far. But it's kind of cool when you crack up a piece of writing, and then realize you wrote it. I recommend this feeling.
