Based on Chapter 46, what are the ultimate rewards and powers that come with true devotion to the Guru?

Chapter 46 extols the immense power of devotion to the Guru. It states that for a devotee with heart and soul, the qualities of Peace, Detachment, and Fame remain under their control. The text poses the question, 'what could they possibly lack?' and answers that whatever a devotee desires in their heart, they will obtain without effort. The greatness of such devotion is so profound, as mentioned in Chapter 46, that even the state of Brahman-realization is said to serve the devotee like a maid-servant, and liberation is not even sought after by them.