According to Chapter 45, what is the significance of the Guru's grace and how does it impact a devotee's life?

Chapter 45 places immense significance on the Guru's grace, stating that if the Guru becomes merciful, a devotee's worldly life becomes happy. The text suggests this grace is transformative, making "the impossible become possible" and enabling the Guru to take a follower "across to the other shore in a moment." This is underscored by the powerful assertion within Chapter 45 that the Guru's feet are even more potent than Moksha (liberation), the ultimate goal for a human. By serving the Guru, the highest spiritual rewards are said to enter one's life effortlessly.