How did Sai Baba explain His true, all-pervading nature beyond his physical form?

Sai Baba explained that His physical body was perishable, but His true nature was the imperishable Brahman, which is worthy of worship. As described in Chapter 3, He stated, "I am filled on all four sides in the form of the eightfold nature (Ashtadha-prakriti)." He elaborated that everything in the universe with a name, form, or shape, both moving and unmoving, is a manifestation of His play. Baba identified Himself as the one indicated by 'Om' and asserted His presence within all objects, stating, "There is no object different from the Self... I alone am everywhere. I am filled in all ten directions." This teaching points to a non-dual understanding where the devotee is encouraged to see Sai in everything.