What role does the Shri Sai Satcharitra book itself play, as described in Chapter 45?

In Chapter 45, the Shri Sai Satcharitra is elevated to a sacred and vital role, serving as the continuing presence of Sai Baba. The text explicitly states that while the physical form of the incarnation has vanished, this book, His 'literary form,' will provide remembrance for devotees at every step. It is not just a historical account but a living conduit for His grace. Chapter 45 further describes that listening to these stories with concentration brings a unique and indescribable peace. The author refers to the creation and reception of the book as a 'speech-sacrifice' (Vag-yagna), which is a supremely holy act for the one who listens with a reverent and focused mind, ensuring Sai's teachings and presence endure.