What are the main topics and events outlined for discussion in Chapter 43 of the Shri Sai Satcharitra?

Chapter 43 serves as a continuation of the account of Sai Baba's passing, promising to complete the narrative. As outlined in the chapter, the key topics include how Sai listened to the Ramayana being read by a Brahmin as his death neared, the planning for his Samadhi, and the significance of the 'fall of the brick'. It also mentions a past incident where Baba raised his life breath for three days, leading people to mistakenly believe he had died, only for him to return to his body, startling everyone. The author presents these stories, noting that the passing of saints purifies both listeners and speakers.