What is the core message of Chapter 45 regarding Sai Baba's presence after his Mahasamadhi?

Chapter 45 conveys that although Sai Baba's physical form, which brought eternal contentment and removed the fear of worldly existence, is now lost, His presence endures in two significant ways. Firstly, He established His form in the hearts of His devotees through meditation before bringing His incarnation to an end. Secondly, the chapter emphasizes that the Shri Sai Satcharitra itself serves as His "literary form." As described in Chapter 45, this sacred book is meant to provide remembrance at every step. By listening to these stories with a concentrated mind, one can attain a unique and indescribable peace, ensuring His presence remains accessible to all.