How does the beginning of Chapter 42 describe the power and grace of a Sadguru for a devotee?

The introduction to Chapter 42 beautifully extols the virtues of the Sadguru. It describes Sai Baba as a 'Wish-fulfilling Tree' (Kalpataru) for his devotees and the one who shows the way across the river of worldly existence. The text explains that through the light of the Guru's grace, the distress and fear of this existence are removed, and the door to ultimate liberation opens. As mentioned in Chapter 42, by constantly remembering the Sadguru's feet, immediate unhappiness transforms into happiness, the very nature of obstacles dissolves, and even death itself meets its death.