How does one achieve surrender at Sai's feet, and what are the ultimate signs and rewards of this devotion as detailed in Chapter 46?

Chapter 46 teaches that true surrender involves dedicating one's body, speech, and mind at Sai Baba's feet and engaging in constant chanting of his name. The definitive sign that the mind is surrendered is that the seeker becomes inclined towards peace and thrives in complete devotion. The rewards of such devotion are immense. The chapter states that Peace, Detachment, and Fame remain under the control of such a devotee. It assures that whatever they desire will be obtained without effort, and even the state of Brahman-realization serves them like a maid-servant, indicating the supreme power of heartfelt devotion.