How does Sai Baba impart his teachings to his followers, according to the provided text?

According to Chapter 19, Sai Baba's method of teaching is subtle and pervasive. The text explains that Baba does not require a specific time or place for his instruction; his teachings can occur naturally while one is sitting, standing, or walking. He is described as the puppeteer, or 'Mother Sai,' who pulls the strings of inspiration while his devotees are the puppets. This is illustrated when a devotee's inner resolve to focus on Rama's name is immediately affirmed by hearing a song about Rama, which is seen as Baba compassionately watering the 'sprout' of the devotee's resolve without speaking a word himself.