What was Sai Baba's attitude towards caste distinctions and ritual purity, based on the descriptions in Chapter 7?

As described in Chapter 7, Sai Baba completely disregarded caste distinctions and conventional notions of ritual purity. The text states that for him, caste did not matter in the slightest, whether one was a Shudra or an outcaste. This is powerfully illustrated by the fact that the most respected Brahmins and keepers of the sacred fire (Agnihotris) would abandon their pride in ritual purity and prostrate before him. Furthermore, the chapter notes that he had no ego regarding the body and his mind felt no disgust even if a dog were to put its mouth into the food, demonstrating a profound transcendence of worldly distinctions and a focus on the divine essence in all.