Based on Chapter 6, how is the Sadguru's power and grace described, and what is the effect of His touch on a devotee?

Chapter 6 of the Sai Satcharitra eloquently describes the supreme power and grace of the Sadguru, identified as Sai Baba. It states that the Sadguru is the helmsman who guides the boat of life, whether in spiritual or worldly matters, to the far shore. The chapter emphasizes the profound impact of the Sadguru's touch. When Sai Baba places his blessing hand on a devotee's head, it's said that the heart overflows with self-bliss. This touch is so powerful that it can burn away the subtle body or ego into ashes, something even the fire of dissolution cannot achieve. Furthermore, the text mentions that placing His lotus-hand on the head washes away the accumulated impurities of many births, making the devotees pure.