Exfoliating an Idea

“I am not constructing a story, but exfoliating an idea that’s usually caught in a metaphor. I listen for its squeak. What I have written must tell me what to write next. If it does not, it must be rewritten until it does. That way I rewrite my beginning until the book is done.”
William Gass, “William H. Gass: How I Write,” by Noah Charney , The Daily Beast 13 May 2013