What are the core teachings about the relationship between a Guru and a disciple as described in Chapter 16 of the Sai Satcharitra?

Chapter 16 of the Sai Satcharitra presents profound teachings about the nature of the Sadguru and the ideal conduct for a disciple. The Guru is depicted as a 'King of Kings' and the 'Lord of the Empire of Self-Bliss,' who has taken a physical body solely to uplift the poor and lowly. The chapter emphasizes that a disciple should approach the Guru with sincere faith and humility, offering service without any 'cleverness' or pride. The text states that the Sadguru is already desire-fulfilled (Aptakama), but He lovingly accepts offerings made with pure faith. The ultimate path for a seeker is to completely surrender to the Guru, as He is the most generous giver in all three worlds, capable of bestowing the 'Unthinkable Object' (Brahman), a gift far greater than what even a wish-fulfilling gem could provide. As mentioned in Chapter 16, firm faith at the Guru's feet is essential for a disciple to attain union with Brahman.