Baba instructed the author to perform 'my service.' How did Baba then explain the true nature of his self that was to be worshipped?

When Sai Baba instructed the author to perform His service, he clarified the true object of worship. As explained in Chapter 3, Baba distinguished between His perishable physical body and his true, imperishable nature, which is the Brahman worthy of worship. He revealed that His true form is the eightfold nature (Ashtadha-prakriti), which pervades the entire universe of moving and unmoving things. He identified himself with the Om (Pranav) and stated that He is filled within all objects and in all ten directions, emphasizing that there is no object different from the Self. Thus, the service is a meditation on His omnipresence.