What does it mean when the text says Sai Baba is the 'complete Supreme Brahman' and the world is an 'illusion'?

This is a profound philosophical statement explained in Chapter 43. Calling Sai the 'complete Supreme Brahman' identifies him with the ultimate, formless, and eternal reality of the universe. The text clarifies that for one who is Brahman, concepts like birth and death are meaningless. The subsequent claim that 'the world is an illusion' stems directly from this. From the perspective of the eternal Brahman, the transient, ever-changing material world, including the physical body, lacks ultimate reality and is thus considered an illusion or a temporary appearance. This is why, as Chapter 43 describes, Sai was 'devoid of bodily impulses' and had no 'consciousness of the body,' as his true nature was the all-pervading, unchanging Brahman, not the limited physical form.