What are the primary attributes and the stated purpose of the Sadguru as described in the opening verses of Chapter 16?

The initial verses of Chapter 16 describe the Sadguru with a wealth of divine attributes. He is called the 'Lord of the Empire of Self-Bliss,' 'Stainless' (Niranjana), 'Imperishable' (Avyaya), and 'beyond attributes' (Gunatita). His personal ornaments are said to be Peace and Self-control, which shine like divine gems around his neck. He wields the 'sharp blade of the sword of Knowledge,' which causes the 'tree of worldly existence' to tremble in fear. Most importantly, Chapter 16 explicitly states the purpose for his incarnation, declaring that he has taken a physical body for the noble cause of helping others and uplifting the poor and the lowly.