According to Chapter 45, what is the spiritual significance of engaging with the Satcharitra, and how is it framed as a 'Vag-yagna'?

Chapter 45 describes the profound benefits of engaging with the Satcharitra. While the physical form of Sai is no longer present, the act of listening to these stories is a powerful alternative. The chapter states that listening with a concentrated mind allows one to attain a unique and indescribable peace. This process is referred to as a "speech-sacrifice" or 'Vag-yagna'. The author, considering himself of little knowledge, asks the wise listeners to accept this speech-sacrifice with a grateful heart. Ultimately, Chapter 45 concludes that one who listens to these stories while bowing at Sai’s feet performs a greatly auspicious and supremely holy act.