Describe the nature of Sai Baba's devotion to his Guru as he recounts it in Chapter 19.

In Chapter 19, Sai Baba paints a vivid picture of his profound and all-consuming devotion to his Guru. He describes serving his master for twelve years, during which his single-minded focus was on the Guru himself. He says, 'I would gaze at my Guru's face with love day and night; I felt neither hunger nor thirst; without the Guru, my mind was restless.' This intense contemplation was his meditation and his only goal. Baba explains that this unwavering focus was all his Guru truly expected from him. This account highlights a form of devotion where the disciple's entire being is centered on the Guru, finding sustenance, joy, and purpose solely in his presence and service.