According to Chapter 16, what is the proper way for a disciple to serve their Guru and what actions or attitudes should they avoid?

Chapter 16 provides clear guidance on the disciple's conduct. The most crucial action is to simply surrender oneself to the Sadguru, as the disciple is often unaware of their own pitfalls. The text explicitly warns against using 'cleverness' (Chaturai) or having even a slight neglect in service, as this will lead to trouble. Firm faith at the Guru's feet is essential. As stated in this chapter, the Sadguru fulfills the disciple's desire for service and makes them desireless, so the disciple's duty is to remain humble and serve with faith, through which they can attain union with Brahman.