How did Sai Baba demonstrate his omniscience in the story of Damu Anna's business ventures?

Sai Baba demonstrated his omniscience by perceiving Damu Anna's unspoken thoughts and foreseeing the future. As Chapter 25 details, Baba knew the 'secret thoughts of every living being.' When Anna mentally proposed a business partnership, Baba gave a 'manifest answer' to the 'hidden' thought, advising against it. Later, when Anna considered a different trade in grains, Baba again responded to the unvoiced idea by saying, 'You will buy five seers and give seven seers,' indicating a future loss. This event shows that the past, present, and future were like an 'amla fruit on His palm,' allowing Him to caution His devotees at the perfect time.