How does Sai Baba explain his omnipresence in all living things, and what is the ultimate lesson on worship he provides?

Sai Baba explains his omnipresence by stating his oneness with all creatures, from the highest to the lowest. As detailed in Chapter 9, he explicitly tells a devotee that he is one with a hungry dog and a muddy pig she had seen earlier. He elaborates, "Sometimes I am a dog, sometimes a pig; sometimes I am a cow, sometimes a cat. Sometimes as an ant, a fly, or aquatic creature, in such forms I roam." The ultimate lesson he imparts is that true worship involves renouncing the sense of difference between beings and learning to see him in everyone and everything. He says the one who achieves this is the one he truly loves.