I feel it in my bones

So, we were watching Peter Pan, the 2003 version, and at the end all the Lost Boys come back with Wendy and most of them get adopted by Mr. Darling, except one: Slightly. He was late to the adoption party. Aunt Millicent asked him what was wrong, and of course he was sad because he didn't have a new mommy. Then, after being hit by Tink with some fairy dust (which apparently makes you fly and have a heart for orphans), she said, "Well, I'm your Mommy." "How do you know?" says Slightly. "I feel it in my bones!" she replies.

That hit pretty close to home. Now I have another answer for her when she asks.

How do I know? I feel it in my bones.

-Niles