Based on the text, what was Sai Baba's method for bestowing grace and accomplishing spiritual work for his devotees?

According to Chapter 18, Baba's skill in bestowing grace was profound and multifaceted. He instructed devotees in various ways, demonstrating that his presence was not limited by physical distance; whether a devotee was near or in a distant land, Baba was described as being 'close within.' Even while sitting in the Masjid, He would assign a specific task to someone, like telling Bapusaheb Jog to read the sacred books in the Wada. The text states that Baba would give them His own power to ensure that the work was accomplished, using his disciples as instruments for the spiritual welfare of others.