How does Chapter 45 describe the transition from Sai Baba's physical presence to his literary form in the Satcharitra?

Chapter 45 poignantly describes the departure of Sai Baba's physical incarnation, noting that the 'Sai-form' which granted liberation from worldly fears is now 'lost to our sight.' The chapter then offers a profound source of solace. As detailed in Chapter 45, when the work of the incarnation was complete and the physical form vanished, this book, the Shri Sai Satcharitra, became His 'literary form.' This literary form is intended to provide remembrance of Him at every step, ensuring His presence continues to be felt by devotees through the power of His stories.