Based on Chapter 7, what was Sai Baba's attitude towards caste distinctions and ritual purity?

Chapter 7 clearly illustrates that Sai Baba was completely beyond all considerations of caste and ritual purity. The text states that for him, caste did not matter 'even in the slightest degree' and that he had no ego regarding his body. This is powerfully demonstrated by the fact that the 'best of Brahmins' and even Agnihotris, who are keepers of sacred fire and very particular about ritual purity, would abandon their pride and prostrate before him. Furthermore, his indifference to conventional rules of purity is shown in the observation that his mind felt no disgust even if a dog were to put its mouth into the food, showing he was the same to all castes and creatures.