Trace the emotional journey of Cholkar throughout the story, from his initial vow to his interaction with Baba in Shirdi.

Cholkar's journey, as chronicled in Chapter 15, is one of desperation, devotion, and ultimate bliss. Initially, he approached Baba with humility and anxiety, as his entire livelihood depended on passing an exam. After his prayer was answered, he felt joy but then experienced the struggle of worldly life, which delayed his pilgrimage. During this delay, his resolve was tested, leading to his personal penance of giving up sugar. Upon finally reaching Shirdi and having Sai's darshan, he was filled with 'supreme bliss' and delight. This culminated in amazement and joyful tears when Baba revealed knowledge of his secret, leading to a state where his faith was immovably confirmed and he received Baba's priceless words deep into his heart.