What does the story of Das Ganu reveal about the role and importance of a Guru's grace?

The story of Das Ganu powerfully illustrates the indispensable nature of a Guru's grace. Chapter 20 explains that Das Ganu, despite his efforts, was stuck on a doubt while translating an Upanishad. The text explicitly states that without Guru's grace, the "hidden truth does not come to hand." However, it also notes that for one attached to the Guru's feet, there is "not even a bit of difficulty." When Sai Baba showed grace, the difficulty Das Ganu faced simply vanished. His writing is described as a "stream of milk," with Sai's grace being the "sugar in it." This metaphor from chapter 20 beautifully shows that a Guru's grace is the sweetening, clarifying element that makes profound spiritual understanding accessible and joyful.