Ruth May says she woke up in the middle of night and Nelson was there.
He gives her a present, a nkisi. She's supposed to put her spirit inside (which she does by blowing into it), and think of a place that she wants to disappear to.
If she thinks of that place every day, she'll disappear to that place when she's about to die.
She keeps it under a pillow and tries to think of a place to go.