How does Chapter 6 describe the significance and power of a Sadguru like Sai Baba?

Chapter 6 of the Shri Sai Satcharitra uses a powerful metaphor, stating that just as a boat with a skilled helmsman reaches the shore, any spiritual or worldly matter guided by a Sadguru will succeed. It explains that the mere utterance of 'Sadguru' brings Sai Baba to mind, who then places His blessing hand on the devotee's head. This touch is described as wondrous, capable of burning away the subtle body of ego into ashes—a feat even the fire of dissolution cannot achieve. According to the chapter, this divine contact fills the heart with bliss and washes away impurities accumulated over many births, making Sai's devotees pure.