"My heart is darkness!" Shadow snapped angrily, the lights growing dim. "What I am at my core is darkness. It's hate and fear and bitterness! A mindless creature that harbors all the dark that doesn't survive in the light of a person's heart, what is buried, which a hero has a lot of, that follows their owner for their life. That is what a shadow is. That is what I am without my....freakish, anomalous ability to actually think for myself. But just 'cause I can decide to be different does not change. What. I. Am! It doesn't make any of that go away!"