Can you explain the story of the woman who wanted to fast, as previewed in Chapter 32?

In Chapter 32, a story is introduced about a woman who came to see Sai Baba with the firm intention of staying for three days and observing a strict fast without any food. However, the chapter foreshadows that this resolve would not last. The text explains that an occasion arose where her firm plan was broken, and she was not only made to cook puranpolis but also to eat them to her heart's content. According to the narration in Chapter 32, this incident serves to teach a profound lesson: "Wearing out the body for others' sake - this blessed act is true welfare," emphasizing selfless service over personal austerity.