What guidance does Chapter 16 offer on how a disciple should approach and serve their Guru?

According to the teachings in Chapter 16, a disciple must approach the Sadguru with sincere faith and humility, surrendering themselves completely. The chapter explicitly warns against using "cleverness" (Chaturai) or showing even slight neglect in service, as this will lead the seeker into trouble. The Sadguru, being one whose desires are already fulfilled (Aptakama), values the devotee's faith above all else. He accepts a simple leaf or flower offered with love but turns away from offerings made with pride. Ultimately, the text states that by serving the Guru with unwavering faith, the servant can attain union with Brahman.