The text says 'While humans make their plans, God has another plan.' How do the events in Chapter 51 illustrate this point regarding Dixit's journey?

This statement is perfectly illustrated by the events leading to Dixit's Shirdi trip. As Chapter 51 narrates, the 'human plan' consisted of Dixit's intense worrying and his formal request to the Mirikars, which led to their own serious discussions about who should accompany him. This methodical planning was completely overshadowed by 'God's plan,' which unfolded unexpectedly. This divine plan involved a series of coincidences: a false telegram about a sick relative brought Madhavrao to Nagar, and at that precise moment, Panshe and Gadre happened to be passing by to spot him. This effortlessly resolved a problem that human effort was struggling with, showing how a higher will orchestrated the outcome.