When Baba told Annasaheb to perform his 'service,' what did he mean? Was he just talking about worshipping his physical body?

Sai Baba provided a profound philosophical clarification on what performing His "service" truly means. In Chapter 3, after giving the instruction, He immediately distinguished between His perishable physical body and His true, eternal nature. He explained that the real object of worship is the imperishable Brahman. Baba stated, "I am filled on all four sides in the form of the eightfold nature (Ashtadha-prakriti)," meaning His essence pervades the entire universe of moving and unmoving things. Therefore, His service is not merely the worship of a physical form but the practice of recognizing and venerating His omnipresent, divine essence in all of creation.