Based on the provided text, what are the ultimate rewards for a devotee who achieves true devotion and detachment?

According to Chapter 46, a devotee who performs their devotion with heart and soul gains mastery over Peace, Detachment, and Fame, which are said to always remain under their control. The text poses the question, 'what could they possibly lack?' It states that for such a person, even the exalted state of Brahman-realization serves them like a maid-servant. Their spiritual stature is so high that they do not even need to ask for liberation, and holy pilgrimages are said to come to touch their feet.