How does Chapter 16 resolve the paradox of the Sadguru being desireless (Aptakama) yet still engaging with disciples and accepting their service?

Chapter 16 addresses this seeming paradox by explaining the Sadguru's profound purpose. Although the Sadguru is always "Aptakama," meaning one whose desires are already fulfilled, He engages with devotees not for His own sake, but for theirs. The chapter clarifies that by accepting service, the Sadguru fulfills the disciple's own desire to serve, thereby making the disciple desireless in turn. It mentions that He dons the "cloak of ignorance" to impart knowledge to the ignorant and has taken a body for the very purpose of helping others. Thus, His acceptance of service is an act of grace to guide the devotee toward union with Brahman.