According to Chapter 10, how does devotion to the Sadguru impact a follower's destiny and worldly struggles?

Chapter 10 explains that placing faith in the Sadguru's feet can fundamentally alter one's fate, a concept poetically described as His ability to "strike a nail over the lines of destiny." The text asserts that where the service of the Sadguru is pure, the entire worldly existence (Samsara) is destroyed, eliminating the need for complex intellectual or logical struggles. As detailed in Chapter 10, the Guru acts as a boatman who helps devoted bhaktas cross the three types of miseries and the greater ocean of existence, ultimately granting them liberation and bliss effortlessly.