Could you explain the symbolic meaning behind Sai Baba extinguishing the lamp flame before leaving for the Chavadi?

While Chapter 37 details the actions Sai Baba took before starting the Chavadi procession, it does not explain the symbolic meaning or reasoning behind them. The text describes that after Tatya Patil placed a shawl over Him, Baba would go to a spot where firewood was kept. He would move His right big toe there for a moment and then, by personally waving His right hand over the burning flame, He would first extinguish it before setting out. The significance of this specific ritual is not elaborated upon in these passages, which focus on describing the event itself.