Based on Das Ganu's song and other events, how does Chapter 4 describe Sai Baba's all-encompassing and universal nature?

Chapter 4 portrays Sai Baba as a universal and all-encompassing spiritual figure. A summary of Das Ganu's inspired song describes Baba as manifesting the powers of the Hindu Trinity—Brahma, Vishnu, and Shiva—and embodying different divine moods, from playful like Krishna to fierce like Rudra. His universality is highlighted by the observation that "He loves the Hindus and lives in a mosque for Muslims," transcending religious boundaries. The chapter further notes his paradoxical nature as a "beggar who shames the wealthy." Ultimately, his supreme sanctity is asserted with the concept that holy rivers like the Ganga, which people visit to wash away sins, themselves come to the feet of saints like Baba to be purified, establishing his feet as the ultimate pilgrimage site.