According to Chapter 32, what is the significance of a Guru's grace in attaining knowledge?

Chapter 32 places supreme importance on the necessity of a Guru's grace for attaining true knowledge. The text explicitly states that even if one has studied the Vedas, Vedangas, and other scriptures, all that learning is considered mere chaff without the Guru's blessing. The narration in Chapter 32 makes it clear that genuine knowledge is impossible to achieve without this grace, and that the words spoken from Sai's own mouth are powerful enough to destroy sins and afflictions and allow a devotee to see their own Guru.