What are the core messages in Chapter 27 regarding the importance of the Sadguru and the nature of devotion?

Chapter 27 of the Sai Satcharitra powerfully conveys that holding firmly to the Sadguru's feet is the ultimate spiritual act, equivalent to saluting the divine Trinity and the Supreme Brahman. This chapter describes the ideal state of a devotee, whose heart is moved and whose body shows signs like perspiration and tears of love when listening to the Guru's stories. This experience is called the awakening of the Guru's grace. Furthermore, the text teaches that worldly attachments to family and possessions are just momentary Maya, and the only way to overcome this illusion is to surrender to Sai with singular devotion, as this is the path to true salvation.