Describe the nature of the relationship and the type of devotion Sai Baba had for his Guru, as recounted in Chapter 19.

As recounted in Chapter 19, the relationship between Sai Baba and his Guru was one of profound love, intense devotion, and constant contemplation. Baba describes serving his Guru for twelve years, during which he felt no shortage of food, clothing, or love. He states he would gaze at his Guru's face day and night, feeling neither hunger nor thirst, and his mind was restless without his Guru. This constant focus was the primary expectation of his Guru, who 'desired nothing more than this.' The Guru is described as a 'veritable idol of devotion and love' who always protected his disciple, and their bond was like 'clouds of joy.'