How does the introduction of Chapter 31 set a philosophical context for the story of the sannyasi Vijayananda?

The introductory verses of Chapter 31 serve a dual purpose. First, they briefly recap past stories and preview upcoming ones, including that of the sannyasi. More importantly, before beginning the main narrative, the chapter establishes a key philosophical framework. It explains that one's thoughts at the time of death dictate their next birth, making the constant remembrance of God's name and the guidance of saints paramount for liberation. By presenting this teaching just before the story of Vijayananda, as detailed in Chapter 31, the text implies that the sannyasi's journey and his encounter with Sai Baba are not merely physical events but are deeply connected to his ultimate spiritual destiny and liberation.