How did Sai Baba's life and practices demonstrate a blend of Hindu and Muslim traditions, making it hard to categorize him?

Chapter 7 of the Shri Sai Satcharitra details the enigmatic nature of Sai Baba, which transcended religious labels. While he resided in a mosque, a practice associated with Muslims, he maintained a sacred fire (Dhuni) and allowed the ringing of bells and blowing of conches, which are Hindu customs. The chapter notes that if he was called a Hindu, he looked like a Yavana (Muslim), but if called a Yavana, he bore the noble marks of a Hindu. It even points out the paradox that his ears were pierced like a Hindu, yet his circumcision was evident. This fusion of practices, such as celebrating Ram Navami and allowing the Sandal procession with equal joy, showed he was a holy incarnation beyond both faiths, as described in Chapter 7.