"There is a term amongst writers called "writing the book of my heart." A particular story, poem, novel etc. that means more to you than all the others you've written. Your favorite "child" so to speak. Have you written the book or story of your heart yet? As a reader, what is the book of your heart? The one book that you've gone back to many times, that means the most to you as a reader."
Check out Colleen's author site.