What are the main introductory themes discussed in Chapter 47 of the Shri Sai Satcharitra?

Chapter 47 primarily serves as a prologue to a story about the downfall caused by greed. It introduces several key spiritual themes, starting with the immense purifying power of a saint's presence, so potent that even the holy River Ganges is said to desire the dust from a saint's feet to wash away impurities. As explained in the chapter, another central theme is the deep and inescapable law of Karma, which dictates that one's future birth corresponds exactly to their past actions and consciousness. Chapter 47 also emphasizes the priceless opportunity of human birth, which should be used to attain self-knowledge, and reinforces the idea that Sai Baba himself is the true narrator of these stories, which are told to help devotees sever their karmic bonds.