What is the primary subject matter of Chapter 43 of the Shri Sai Satcharitra?

Chapter 43 serves as a continuation and completion of the description of Sai Baba's passing, which was introduced in the preceding chapter. The author, Hemadpant, explains that this chapter will fill in the remaining details. As outlined in the text, the narration will cover how Sai listened to the Ramayana before his death, the planning for his Samadhi, the mysterious 'fall of the brick,' and a past incident where Baba appeared to have died for three days but returned to his body. Chapter 43 emphasizes that while stories of death can be sorrowful, recounting the passing of saints is an act that purifies both the speaker and the listener.