Based on Chapter 7, what was Sai Baba's attitude towards the caste system and concepts of ritual purity?

Chapter 7 portrays Sai Baba as being completely beyond the confines of caste and ritual purity. The text explicitly states that for someone like him who has no ego regarding the body, caste did not matter in the slightest. It provides concrete examples to illustrate this. The most learned and high-caste individuals, such as the "best of Brahmins" and Agnihotris (keepers of the sacred fire), would abandon their pride in ritual purity and prostrate before him. His indifference to conventional notions of purity is further demonstrated by the statement that his mind felt no disgust even if a dog were to put its mouth into the food. This shows that he treated all beings and castes equally, without any distinction.