How does the act of studying and performing Parayans of a Guru's biography contribute to building a community?

According to the preface in Chapter 0, studying and performing Parayans of a detailed poetic Guru biography is a form of Guru service. When a writer creates such a work and other devotees also engage in its study and Parayans, a powerful community dynamic is formed. The text explains that the writer gains the merit of serving God in humanity (Jan-Janardan) and public service. This shared practice brings devotees together, allowing them to collectively achieve the purpose of their lives through the study of the Guru's life and teachings.