What is the role and nature of a Sadguru as described in Chapter 18?

Chapter 18 provides a profound description of the Sadguru's role, portraying the Guru as the manifest form of God, encompassing Brahma, Vishnu, and Maheshwara, and essentially the Supreme Lord. The text makes the powerful claim that while the Guru can protect a devotee from God's anger, there is no protector if the Guru themselves becomes angry. As detailed in this chapter, the Guru is a multifaceted guide, directing worldly activities, guiding pilgrimages, and teaching righteousness. By their grace, worldly desires are said to vanish, and the twin fruits of wisdom and renunciation are attained.