the narrator means she can see her imagining the story, or developing a story to go with the scene
Answer:
She means that her mom is thinking about the story
Explanation:
The expression behind someone's eyes means that there is a mental process to remember or create a story coming from her mother about the reason why Picasso was blue. The expression " she relates anecdotes I will never find in books" supports the idea that everything comes from her brain and not from books.
