Our hero lost his sleep, and along with it, his enthusiasm. Desperate as he was, he called his grandmother in the village to complain. She simply explained to him that the fairy tales she told him were what gave him joy and sleep, because fairy tales are a treasure. She even promised to send him a book of fairy tales to help him find his sleep and dreams again.
She said it and she did it. She sent him the book... that you are holding, kids, in your hands. Come on, and have a good time!