Based on Chapter 16, what is the role of a Sadguru and what qualities should a disciple possess to receive His grace?

According to Chapter 16, the Sadguru is a supreme being, an "ocean of Truth, Consciousness, and Bliss," who has taken a physical body to uplift the poor and lowly. He imparts knowledge to the ignorant while appearing to wear a "cloak of ignorance" Himself. For a disciple to receive His grace, the most crucial qualities are faith and humility. The chapter states that the Sadguru accepts offerings made with faith but turns away from those made with pride. It warns that any "cleverness" or neglect in service will lead a seeker into trouble. Therefore, as Chapter 16 advises, a disciple must have firm faith and surrender completely to the Guru, who provides remedies for pitfalls the disciple may not even be aware of.