What is the significance of performing a Parayan of a Guru's biography, and how does it contribute to the community?

According to the preface in Chapter 0, studying and performing Parayans, or devotional readings, of a detailed poetic Guru biography is a profound form of service. For the writer of the biography, it is a direct form of Guru service. For other devotees who participate in these Parayans, the writer gains the merit of serving God in humanity (Jan-Janardan) and performing public service. This collective study helps all participating devotees in achieving the purpose of their lives, thereby strengthening the spiritual community and spreading the Guru's influence.