Why was Sai Baba's instruction about sugar-filled tea so significant, considering Baba didn't drink tea himself?

The significance of Sai Baba's instruction was multi-layered. Firstly, as Chapter 15 notes, it was curious that Baba would even think of tea, as he did not drink it. This made the command stand out. More importantly, the specific mention of being "well-filled with sugar" was a direct and unmistakable reference to Cholkar's private vow of abstaining from sugar. The act was not for Baba's benefit, but solely for Cholkar's. It was a divine hint to confirm that his vow was accepted and his period of renunciation was complete. This personal and precise display of omniscience was designed to impress the stamp of devotion firmly on Cholkar's heart and strengthen his faith.