Based on Chapter 23, what aspects of a saint are considered irrelevant for understanding their true nature?

Chapter 23 teaches that one cannot grasp the true state of a saint by focusing on superficial, external factors. The text explicitly states that things like the saint's caste, their specific behaviors, or the food they eat are not reliable indicators of their spiritual status. A saint's reality is described as being 'always beyond such things.' Instead of these externals, the chapter suggests their true nature is revealed in their inner state, such as how Sai Baba saw Narayana in all living beings, never disregarded anyone, and remained in harmony with the Almighty.