Fiorella paints in layers. She'd like to get it perfect the first time, but she doesn't. So she tweaks and corrects and overpaints again and again.
That's the way she taught too, constantly repeating the same information to her students in different ways, then having them repeatedly answer it back.
And she writes like that, enhancing, minimizing, and adjusting over and over. It's like building an onion, layer by layer.
Come to think of it, that's how she deals with everything in her life.