Describe the sequence of events that led Hemantpant to finally embark on his journey to Shirdi.

Hemantpant's journey to Shirdi began unexpectedly after a conversation with Nanasaheb. According to Chapter 2, Nanasaheb questioned Hemantpant's procrastination and laziness about going for Sai's darshan. This made Hemantpant feel ashamed and awakened a sincere desire to go. He gave his word to leave immediately. That very same day at sunset, he packed his things and left for Shirdi, initially taking a train from Bandra with a ticket only to Dadar, planning to catch the mail train from there.