What two distinct lessons about devotional reading, or 'Parayana', can be understood from the experiences of Sathe and the narrator in this account?

The narrative in Chapter 18 presents two complementary lessons regarding devotional reading. First, through Sathe's experience, Sai Baba explicitly states the primary benefits of a 'Parayana'. Baba says that reading a Guru's book purifies devotees, brings welfare, pleases God, and helps break worldly bonds. Second, through the narrator's experience, a more subtle and personal lesson about discipline is taught. While a concentrated week-long reading can yield fruit, Baba shows the narrator that consistent, daily practice is paramount. By arranging for the narrator to 'coincidentally' find the exact reading portion he had skipped, Baba emphasized that 'discipline means regular reading' and that lapses, even small ones born of laziness, are noticed and need to be corrected for steady spiritual progress.