What does Chapter 16 teach about the nature of a Sadguru and his role in managing a disciple's desires?

Chapter 16 presents the Sadguru as 'Aptakama,' meaning one whose desires are always fulfilled, so a disciple cannot truly give him anything he needs. The relationship is actually the reverse. As the text explains, the Sadguru fulfills the disciple's inherent desire to perform service, and through this process, he makes the disciple desireless. The Guru is described as the 'Lord of the Empire of Self-Bliss,' wielding the 'sword of Knowledge' so powerfully that the very 'tree of worldly existence' trembles before him, illustrating his power to liberate his followers from worldly attachments.