According to Chapter 16, what is the proper conduct for a disciple seeking union with Brahman, and what are the pitfalls to avoid?

Chapter 16 explicitly states that for a disciple to attain union with Brahman (Sayujya), they must serve the Sadguru with faith and remain humble. The text warns that all other means will fail. A disciple should simply surrender themselves completely to the Sadguru, who knows the disciple's pitfalls and provides the necessary remedies. The chapter cautions against 'cleverness' (Chaturai) or any neglect in service, as these actions will lead the seeker into trouble. Even a simple leaf or flower offered with faith is accepted, but pride is immediately rejected. Therefore, firm faith at the Guru's feet is presented as the essential and non-negotiable path.