How did Sai Baba's behavior demonstrate his views on caste and ritual purity?

Sai Baba's actions, as described in Chapter 7, showed that he considered caste and ritual purity to be completely irrelevant. The text states that for one who has no ego regarding the body, distinctions like Hindu or Muslim, Shudra or outcaste, did not matter in the slightest. This is powerfully illustrated by the fact that the most elite Brahmins and keepers of the sacred fire (Agnihotris) would abandon their pride in ritual purity and prostrate before him. Chapter 7 also notes that his mind felt no disgust even if a dog were to put its mouth into the food, showcasing a profound level of detachment from conventional notions of cleanliness and social hierarchy.