What is the primary purpose and effect of listening to the Sai Charitra as described at the beginning of Chapter 51?

According to the introductory verses of Chapter 51, the purpose of a spiritual narrative like the Sai Charitra is to satisfy and soothe its audience. The text uses several analogies, comparing the stories to sandalwood that soothes intense heat, clouds that shower rain to bring joy, and flowers that bloom for worship. Ultimately, the chapter states that this tradition of spiritual narratives arises to satisfy the listeners. The profound effect, as mentioned in Chapter 51, is that "By listening to this Sai Charitra, both the listener and the speaker become pure; the ears of the listeners and the mouth of the speaker are sanctified."