Can you explain the story behind how the author received a portrait of Sai Baba, as detailed in Chapter 41?

Chapter 41 recounts a fascinating story about the unexpected arrival of a Sai Baba portrait. The author recalls a previous instance where Sai appeared in a dream, promising to come for a meal on Holi. This chapter clarifies how that promise was fulfilled. A man named Alli Mohammed brought the portrait at the very moment the author was about to have lunch on Holi, causing immense delight. Alli himself explains how he found the picture. While wandering in Mumbai, he saw a merchant selling various portraits of saints. He was immediately drawn to one specific portrait of Sai Baba, whom he already revered. He bought it, hung it in his home, and took daily Darshan for three months before giving it to the author.