What was the significance of the black dog that Sai told Jog to have Deo feed?

The provided excerpts from Chapter 41 do not mention Sai telling Jog anything about a black dog or instructing anyone to feed one. The interaction mentioned between Jog and Deo is different. In Shirdi, Jog simply asks Deo, "Why aren't you reading Dnyaneshwari daily these days?" This question directly addresses Deo's personal struggle, which was his inability to consistently read the sacred text despite his strong desire. The source from Chapter 41 focuses entirely on Deo's spiritual obstacle and his resolution to wait for Sai's command, not on any instructions involving animals.