What kind of power or knowledge can a person attain through Sai's grace, as mentioned in this section?

Chapter 30 explains that when Sai Baba bestows His grace upon a devotee, that person can attain "inconceivable great power." More specifically, this grace grants the profound spiritual wealth of discrimination between the Self and non-Self, which is described as the attainment of all knowledge. The chapter suggests that this transformation is initiated by devotion, stating that for those who have held onto Sai's feet, the dawn of past good impressions (samskaras) has occurred, leading to the dissolution of all sins and a fearless, obstacle-free path.