'There is no greater agony than bearing an untold story inside you.' Maya Angelou - I Know Why the Caged Bird Sings
Everyone has at least one story to tell. If you have ever tried (and failed) to keep a secret, then you know how insistent the urge can be to pass on the story you have been given for safe-keeping.
As a writer, the story inside is like a secret that is beating its wings against the bars of the cage, trying to escape.