Why did Cholkar have to delay fulfilling his vow, and what personal sacrifice did he make during that time?

Cholkar, a man from a poor household, made a vow to distribute sugar candy if he passed an examination to make his job permanent. Chapter 15 narrates that after his wish was granted by Baba's grace, he had to postpone his trip to Shirdi. The reason for the delay was financial difficulty, with the text poetically stating that for a worldly man, the 'threshold-ghat' of home expenses is very difficult to cross. To maintain his commitment during this waiting period, Cholkar made a personal sacrifice: he completely avoided sugar, viewing it as an 'inedible substance' and even drank his tea without it until the vow could be properly fulfilled at Baba's feet.