How does the narrative in Chapter 13 connect the Satya-Sai vow with the traditional Satyanarayan vow?

Chapter 13 draws a direct and meaningful parallel between the new Satya-Sai vow and the established Satyanarayan vow. It notes that while people traditionally performed the Satyanarayan ritual to overcome a crisis, the Patil began performing the Satya-Sai vow out of immense gratitude for his healing. The text powerfully equates the two deities by stating, 'There it is Narayan, here it is Sai; there is no difference in either.' This comparison elevates the Patil's new practice, suggesting that devotion to Sai is equivalent to devotion to Narayan and that the same blessings, abundance, and auspiciousness are present in both forms of worship.