Why is a detailed and comprehensive biography like the Shri Sai Satcharita considered so important for community building, as opposed to shorter works?

A detailed biography is crucial because it provides enough substance for dedicated study and devotional reading practices like Parayans and Saptahs. Chapter 0 notes that some biographies are not useful for this purpose because they are not comprehensive, sometimes spanning only a few pages. In contrast, a work like the Shri Sai Satcharita, which was published over six years, is described as detailed, sweet, and inspirational. Such comprehensive works are suitable for Parayans, allowing devotees to collectively study the Guru's life and teachings, which in turn helps build a strong and knowledgeable community.