Based on Chapter 46, what is the recommended spiritual practice for a devotee, and what are its results?

Chapter 46 outlines a clear path for spiritual advancement, starting with surrendering one's body, speech, and mind at Sai's feet. The primary practice recommended is the constant chanting of his name, which is described as an easy remedy that washes away sins. According to the chapter, this practice destroys the negative qualities of 'Rajas' (passion) and 'Tamas' (ignorance), while promoting 'Sattva' (purity). This purification process awakens a righteous disposition (Dharma), which in turn leads to detachment from worldly matters and the ultimate attainment of self-knowledge and inner peace.