What is the fundamental role of a disciple in their relationship with a Sadguru as outlined in Chapter 16?

The fundamental role of a disciple, as detailed in Chapter 16, is one of complete and humble surrender. The text explicitly asks, "What should a disciple do? He should simply surrender himself to the Sadguru." This is because the disciple is often unaware of their own weaknesses and pitfalls, while the Guru provides the necessary guidance and remedies. Chapter 16 further states that service to the Guru must be done with unwavering faith, as any cleverness or neglect can cause problems for the seeker. Ultimately, this complete surrender and faithful service is the path to attaining union with Brahman.