How does Chapter 12 explain Sai Baba's role in helping people overcome duality and perceive equality?

In Chapter 12, Sai Baba is presented as a master who helps even the 'dull-witted' overcome the obsession with duality through the knowledge of non-duality. He is described as the embodiment of 'Truth, Consciousness, and Bliss' whose very form, like the expansive sky, fills all places. This concept is directly linked to his actions, as the chapter emphasizes his 'enmity-free equality everywhere.' It is explicitly stated that he has no feeling of friend or foe and that to him, 'the pauper and the king are the same.' This illustrates how his teachings and personal example guide devotees toward seeing the underlying unity in all of creation.