What are the main topics and themes introduced in Chapter 42 of the Sai Satcharitra?

Chapter 42 of the Sai Satcharitra serves as a pivotal section that bridges past miracles with a momentous event. As mentioned in the chapter, it begins by referencing the previous chapter's stories about Sai's portrait being protected from water and his appearance in a devotee's dream. The text then establishes a core theme: the power of a Sadguru's grace to remove worldly fears and open the path to liberation. It explicitly states that this chapter will describe Sai's nature, whether it was "intense or soft," and, most significantly, provide a detailed account of Baba leaving his physical body, an event for which he made preparations in the third watch of the day.