Can you explain the philosophical concepts in Chapter 45 regarding Sai Baba's departure and the continuity of His presence?

Chapter 45 presents a profound philosophical view of Sai Baba's Mahasamadhi. It describes His departure not as a simple death, but as a conscious act of bringing His incarnation to an end once its work was complete. The text states that He established His own form in the hearts of devotees through meditation and then departed for His supreme abode in a state of Yoga that is "beyond comprehension." Although this physical form vanished, the chapter emphasizes continuity through His "literary form"—the Satcharitra. This book is positioned as a living remembrance and a holy medium, ensuring that listening to His stories becomes a supremely auspicious act that grants peace and concentration, thus perpetuating His presence.