According to Chapter 30, what is the connection between a devotee's faith, receiving grace, and gaining spiritual knowledge?

Chapter 30 details a clear spiritual progression from devotion to enlightenment. It begins with the devotee's state of being, where they are "[c]raving for Sai's spoken words" and "watching with faith, trusting completely." This complete trust and faith are the catalysts. The text explains that Sai Baba, who "knows completely the heart's desires of His own devotees," responds to this faith. The crucial connection is made when the chapter states, "Upon whomever They bestow grace, that one attains inconceivable great power. The wealth of discrimination between Self and non-Self - all knowledge is attained." Thus, sincere devotion attracts divine grace, and this grace, in turn, bestows the highest spiritual wisdom, including the critical ability to discern the eternal Self from the transient non-Self.