I'm reading Feeding Your Demons, by Tsultrim Allione. It's about a beautiful Chöd practice of loving your difficulties in a selfless way, and taming them with generosity.
First, you envision your demon before you. This is the part I especially like. Then you are supposed to turn your body into whatever the demon needs, until it disappears. I like this part, too, but then the demon is no longer available to model for me, and I have to wait for the next one...