The Satcharitra is referred to as a 'speech-sacrifice' or 'Vag-yagna' in Chapter 45. Can you explain what this means based on the text?

In Chapter 45, the Shri Sai Satcharitra is presented as a 'speech-sacrifice' (Vag-yagna), which is a sacred offering made through words. The author humbly positions himself as an ignorant person of little knowledge put forward to complete this task by the Guru's grace, asking the wise listeners to accept this offering with a grateful heart. The concept, as described in Chapter 45, implies that the creation and narration of these stories are a holy act. It is a sacrifice completed by the Guru Himself, and the act of listening with a concentrated mind while bowing at Sai's feet is considered a supremely auspicious and holy endeavor.