How does Chapter 6 of the Sai Satcharitra describe the importance and power of a Sadguru?

Chapter 6 explains that a Sadguru is like a helmsman who safely guides the boat of life, whether in spiritual or worldly matters, to its destination. The text emphasizes the profound power of the Sadguru's touch, stating that when Sai Baba places His hand on a devotee's head, it can burn away the subtle body of ego into ashes. This blessing, often accompanied by Udi, purifies the devotee by washing away the accumulated impurities of many past births, filling the heart with bliss and love, as detailed in the opening verses of this chapter.