How does Chapter 12 suggest Sai Baba helps followers overcome the concept of duality?

In Chapter 12 of the Sai Satcharitra, Sai Baba is described as a powerful spiritual force who helps devotees transcend the illusion of duality. The text refers to him as the embodiment of Truth, Consciousness, and Bliss who, through the "knowledge of non-duality," can "remove the obsession with duality even from the dull-witted." This is further exemplified by his own actions; he maintains an "enmity-free equality," viewing friends and foes, paupers and kings, as the same. By embodying and teaching this principle of non-duality, as detailed in Chapter 12, Sai Baba helps still the "waves of worldly existence" for his surrendered followers.