How does Chapter 10 describe the power of a Sadguru like Sai Baba in a devotee's life?

According to Chapter 10 of the Shri Sai Satcharitra, the power of a Sadguru is transformative and absolute. It states that by placing faith in the Guru's feet, He can change one's fate, metaphorically described as striking 'a nail over the lines of destiny.' The text further explains that pure service to the Sadguru completely destroys the worldly existence (Samsara), eliminating the need for complex intellectual or logical struggles. When the Sadguru acts as a boatman, devotees can cross the three types of miseries and the entire ocean of existence (Bhavasagar). For those with true devotion, He effortlessly places Knowledge (Samvitti) in their hands and grants liberation (Moksha), which is characterized by bliss.