How did Sai Baba use the interaction between Cholkar and Jog to reinforce Cholkar's faith?

Sai Baba masterfully used the interaction between Cholkar and his host, Jog, to create an undeniable confirmation of his divine awareness for Cholkar. According to Chapter 15, after Cholkar had his darshan, he went to stay with Jog. As the two were about to part, Baba intervened and told Jog to serve Cholkar tea "well-filled with sugar." The text notes that Baba himself did not drink tea, so the instruction was unusual and specifically timed. For Cholkar, who had secretly given up sugar as penance, this was a stunning revelation. It served as a "full hint" that his vow and his private sacrifice were known and accepted, stamping his mind with unwavering devotion and faith.