Can you compare the spiritual outcomes of writing biographies of worldly figures versus writing about saints?

Chapter 0 draws a clear distinction between the spiritual outcomes of writing different types of biographies. Writing about worldly Gurus, such as writers, is considered a worldly service that, while potentially educational, is rooted in self-interest and does not yield spiritual fruits because its impact is limited by space and time. In contrast, writing the biographies of many saints is a form of Guru service that does yield spiritual fruits. However, even this is considered a partial or one-sided approach, and the text suggests it is nearly impossible to attain the ultimate spiritual goal through this method alone.