What did Sai Baba mean when He told Annasaheb to do 'my service,' and what is the nature of this worship?

When Sai Baba instructed Annasaheb to perform "my service," He was pointing towards a profound spiritual practice rather than a worldly job. Chapter 3 explains that Baba differentiated between His perishable body and His true, imperishable form as Brahman, which is the real object of worship. He identified Himself with the eightfold nature (Ashtadha-prakriti), stating that He is omnipresent and fills the entire universe. Therefore, the service He prescribed was to cultivate the feeling that He is everywhere, see the divine in all beings, and not shoo away even a dog or fly. This practice, aimed at understanding the essence of 'Who am I,' would dissolve worldly desires and lead to an eternal treasure.