How does Chapter 28 define Sai Baba's omnipresence, and what is its connection to his role as a Sadguru?

The very first verse of Chapter 28 establishes Sai Baba's all-pervading nature by stating, 'Sai is not separate from anyone; Sai dwells in all beings.' This omnipresence is described as absolute, extending from the celestial being Brahma down 'to the ant and the smallest insect,' meaning He pervades all creation, everywhere. The chapter directly links this universal presence to his status as a Sadguru. It explains that because he is complete in Shabda-Brahma (the divine word) and simultaneously shows the signs of the Para-Brahman (Supreme Being), he embodies the dual proficiency that is the hallmark of a true Sadguru.