How does one attain the Guru's knowledge and what are the effects of receiving their grace?

Chapter 18 explains that the knowledge of the Guru is attained by worshipping God with love and by serving the Guru. The path to grace involves associating with saints, listening to their stories, and showing reverence by bowing at their feet, which is said to wash away sins. The effects of the Guru's grace are profound; by it, worldly desires vanish, and wisdom and renunciation are said to come into one's hands like twin fruits. The text states that even a brief moment in the company of a saint can steady a restless mind and attach it to the divine, removing all exhaustion.