What was the significance of Sai Baba telling Jog to give Cholkar tea 'well-filled with sugar'?

The specific instruction from Sai Baba to give Cholkar tea 'well-filled with sugar' was a moment of profound significance, as it revealed Baba's omniscience. According to Chapter 15, Cholkar had undertaken a secret, personal vow to abstain from sugar as a penance for delaying his pilgrimage to Shirdi. When he finally arrived and fulfilled his primary vow of distributing sugar candy, he believed his personal sacrifice was known only to him. However, Baba, who did not drink tea Himself, gave this precise instruction to Cholkar's host, Jog. This act served as undeniable proof to Cholkar that Baba knew the secret of his renunciation. It was a sign that his vow and the penance for the delay were both accepted, which filled Cholkar's heart with amazement and devotion.