Chapter 32 seems to really emphasize the importance of a Guru. What does it say about the necessity of a Guru's grace, even for those who are learned?

Chapter 32 places immense importance on the role of the Guru, stating that Guru's grace is absolutely essential for spiritual realization. The text makes a powerful claim that even if a person has thoroughly studied the Vedas, Vedangas, and other scriptures like the Shrutis and Shastras, all of that knowledge is considered useless, or "mere chaff," without the grace of a Guru. It explicitly states that there can be no true knowledge without the Guru's blessing. Furthermore, the chapter suggests that listening to the words from Sai Baba's own mouth is so potent that it can cause one to see their own Guru, reinforcing the idea that Sai's teachings are a direct path to this indispensable grace.