According to the Satcharitra, what is the fundamental nature of Sai and his relationship to the world as described in Chapter 28?

Chapter 28 explains that Sai's nature is all-pervading and non-separate from any being. It states that "Sai dwells in all beings. From Brahma to the ant and the smallest insect, He pervades all, everywhere." This chapter further clarifies that He is complete in Shabda-Brahma (the divine word) and exhibits the signs of Para-Brahman (the Supreme Being). Because He is proficient in both these divine aspects, He possesses the essential quality of a Sadguru, capable of guiding souls beyond the physical realm.