How do devotees continue to experience Sai Baba's presence even after his Mahasamadhi?

According to Chapter 43, Sai Baba continues to manifest his presence in a multitude of ways, tailored to the faith and state of mind of the individual devotee. The text explains that he is "hidden from the faithless; he is seen right there by the faithful devotees." He reveals himself through visions, provides experiences and examples, and performs miracles, all in a hidden form. His presence is felt everywhere: as a hidden form in the Chavadi, the form of Brahman in the mosque, and the form of Samadhi in his tomb. Essentially, the experience of his continued presence is immediate and directly corresponds to the level of faith within a person's soul.