Based on his story, what was Sai Baba's personal experience of devotion to his Guru?

Sai Baba's personal experience with his Guru, as he narrates in Chapter 19, was one of total and all-consuming devotion. He describes gazing at his Guru's face day and night, a practice that made him forget hunger and thirst. His mind was restless without his Guru, who was his 'only constant contemplation.' Baba refers to his Guru as a 'veritable idol of devotion and love' whose heart was full of immense affection for him. This intense, loving focus was precisely what the Guru desired, more than anything else. Baba's twelve years at his Guru's feet were a 'festival of joy,' demonstrating a perfect union of love and meditation where the disciple's entire world revolved around the Guru.