Based on the provided text, what was Sai Baba's personal experience of discipleship with his Guru?

Sai Baba describes a deeply loving and devoted relationship with his Guru in Chapter 19. He recounts staying at his Guru's feet for twelve years, during which he was raised with immense love and had no shortage of food or clothing. His Guru was a "veritable idol of devotion and love." The primary expectation from his Guru was not material but spiritual; he desired nothing more than Sai Baba's constant contemplation and devotion, along with the virtues of faith and patience. Sai Baba's focus was absolute, stating, "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."