What is the primary story narrated in Chapter 41 of Sai Satcharitra regarding a photograph of Sai Baba?

Chapter 41 of the Sai Satcharitra recounts a beautiful story about how a physical portrait of Sai Baba arrived unexpectedly at the author's home. As detailed in the chapter, this event is presented as the fulfillment of a dream promise Sai had made, stating, 'On a Holi festival day, I am coming to your house for a meal today.' The chapter explains that on the very day of Holi, just as the author was about to have lunch, a man named Alli Mohammed arrived with a photo of Sai. This miraculous and timely arrival is described as a humorous and wonderful divine play, or Leela, which brought immense delight.