Who's there?

 What Caroline's been thinking is, what if she turned around and saw herself in a mirror or viewed a picture, and she actually recognized the face looking back at her. It's been a long time since she has. If she's really looking in the mirror, she can make herself believe. But if she's not prepared, she doesn't know that person. It's not that they've aged, but that the eyes don't reflect what they once did. She's gained weight and that makes her look different, but she's gained weight before and she still saw the light. It didn't just disappear. It had some large chunks gone at times, but the gradual loss is there. And she's not sure how to get it back. Caroline's wondering where she went and if even a part of her can ever come back.