Chapter 10 states that the Guru 'strikes a nail over the lines of destiny.' How does the chapter elaborate on the Guru's power to alter a devotee's fate and karma?

Chapter 10 elaborates on the Guru's power to change a devotee's destiny by linking it directly to faith and devotion. The phrase 'strikes a nail over the lines of destiny' signifies that by placing complete faith in the Guru's feet, one's preordained fate can be altered. The chapter further explains that the Guru's grace extends to the realm of karma. Through His divine sight, 'the knots of the heart are broken,' and both accumulated (Sanchit) and current (Kriyaman) karmas are destroyed. This process purifies the devotee and removes the karmic obstacles that shape one's existence, leading them toward liberation.