How does Chapter 6 of the Sai Satcharitra describe the significance of a Sadguru's guidance and blessings?

Chapter 6 beautifully illustrates the paramount importance of a Sadguru, describing him as the helmsman who safely guides the boat of life to the far shore. The text explains that simply uttering the word 'Sadguru' brings Sai Baba to mind, who then places His blessing hand on the devotee's head. As highlighted in this chapter, this divine touch, often accompanied by Udi, is incredibly powerful; it can burn away the ego, wash away impurities from countless past births, and fill the heart with immense bliss and love, causing tears of joy to flow.