Describe how Sai Baba explained his true, omnipresent nature after instructing the author to perform his service.

After telling the author to perform His service, Baba elaborated on his true form, as explained in Chapter 3. He clarified that while his physical body (the 'Sai' body) is perishable, his true essence is the imperishable Brahman, which is worthy of worship. Baba stated that he is filled everywhere in the form of the eightfold nature (Ashtadha-prakriti), a concept he related to the Gita discourse. He explained that he is present in all things in the universe, both moving and unmoving, and that with the feeling that he is everywhere, a person's individual desires dissolve, as there is nothing separate from the Self to desire.