What is the meaning of the 'Vag-yagna' or 'speech-sacrifice' as described in Chapter 45?

In Chapter 45, the term 'Vag-yagna' or 'speech-sacrifice' refers to the creation and offering of the Shri Sai Satcharitra. The author, presenting himself as someone of little knowledge, humbly offers this work as a sacrifice of speech. The chapter explains that this act was initiated by the Guru, who put an 'ignorant one' forward to complete the task. The purpose is to have listeners accept this offering with a grateful heart, and the text suggests that listening to these stories with a concentrated mind is a greatly auspicious act.