What does Chapter 46 teach about the supreme power and rewards of devotion to the Guru?

Chapter 46 extols the greatness of devotion to the Guru, stating that if it is performed with heart and soul, the devotee will lack nothing. It promises that whatever a true devotee desires in their heart, they will obtain without effort. The chapter emphasizes that Peace, Detachment, and Fame are always under the control of such a devotee. According to Chapter 46, this devotion is so powerful that even the state of Brahman-realization serves it like a maid-servant, and holy pilgrimages come to touch the feet of the one who possesses such unwavering faith.