Can you summarize the key advice for a disciple found in Chapter 16 of Sai Satcharitra?

Chapter 16 of the Sai Satcharitra provides clear guidance for a disciple on the spiritual path. The primary instruction is to surrender completely to the Sadguru with firm faith. The text warns that any "cleverness" or neglect in service can lead to trouble and that a disciple should remain humble, as this is how one attains union with Brahman through the Guru's grace. The chapter explains that the Guru is the most generous giver and the ultimate refuge. Therefore, a disciple's main duty is to serve with sincere faith, understanding that the Guru will provide the necessary guidance and remedies for their spiritual journey.