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

Chapter 46 extols the supreme greatness of heartfelt devotion to the Guru. It emphatically states that if this devotion is performed with one's whole heart and soul, then Peace, Detachment, and Fame will always remain under the devotee's control. The chapter poses a rhetorical question: what could a person with such devotion possibly lack? It provides assurance that whatever they desire in their heart will be obtained without any effort. In a powerful statement on the fruits of such devotion, the text claims that even the state of Brahman-realization serves a true devotee like a maid-servant, and that liberation is not something they need to actively seek.