What are the main topics and stories introduced in Chapter 32 of Sai Satcharitra?

Chapter 32 of the Sai Satcharitra serves as an introduction to several significant stories and philosophical teachings. The text mentions that a sweet incident narrated by Sai Baba himself, concerning an unexpected darshan of his Guru in a forest, will be shared. It also previews another story about a woman who intended to fast for three days but was lovingly persuaded by Baba to prepare and eat puranpolis, teaching her that "wearing out the body for others' sake - this blessed act is true welfare." As Chapter 32 explains, a major philosophical concept discussed is the 'tree of worldly existence,' a metaphor for our perishable and sorrow-filled life rooted in ignorance. Finally, the chapter strongly emphasizes the supreme importance of a Guru's grace, stating that without it, all other scriptural knowledge is but 'mere chaff'.