According to Chapter 10, what is the transformative power of a Sadguru and how does devotion to him impact a follower's karma and destiny?

Chapter 10 portrays the Sadguru as the ultimate divine reality, capable of profoundly altering a devotee's life. It states that by placing faith in the Guru's feet, he can change one's fate, metaphorically 'striking a nail over the lines of destiny.' Pure service to the Sadguru is said to completely destroy the cycle of worldly existence (Samsara). Furthermore, this chapter teaches that the Guru's sight can untie the knots of the heart, remove attachments, and destroy both accumulated (Sanchit) and current (Kriyaman) karmas, ultimately bestowing liberation and bliss upon the faithful devotee.