How does Chapter 41 connect the arrival of Sai's portrait with a previous dream and the concept of Guru's grace?

Chapter 41 intricately links the unexpected arrival of Sai Baba's portrait to a prior dream promise and the overarching theme of Guru's grace. The chapter recounts a dream where Sai promised the narrator, "On a Holi festival day, I am coming to your house for a meal today." This promise is miraculously fulfilled when Alli Mohammed brings a portrait of Sai at the exact moment the narrator is about to have his Holi lunch. This event is presented as a clear Leela, or divine play. The chapter further explains that such occurrences are a manifestation of the Guru's grace, stating that what "cannot be attained even by great effort is set in motion by the power of the Guru’s grace," demonstrating how Sai fulfills desires at the precise right time.