How did Sai Baba view and interact with people of different castes, according to Chapter 7?

Sai Baba's complete transcendence of caste is a significant theme in Chapter 7. The text explicitly states that for one surrendered to God, caste did not matter in the slightest, and he was the same to all castes with no distinction of birth. This is powerfully illustrated by the fact that the 'best of Brahmins' and Agnihotris, who prided themselves on ritual purity, would prostrate before him. The chapter also notes that his mind felt no disgust even if a dog put its mouth into the food, showing his profound detachment from conventional rules of purity and social hierarchy.