Can you describe Sai Baba's relationship with his Guru and how he was cared for?

Sai Baba's relationship with his Guru, as recounted in Chapter 19, was one of profound love and selfless service. Baba spent twelve years at his Guru's feet, serving him tirelessly. In return, he received immense love and care, stating there was "no shortage of food or clothing, and his heart was full of immense love." Baba's devotion was so intense that he would gaze at his Guru's face day and night, feeling neither hunger nor thirst. He describes his Guru as a "veritable idol of devotion and love" who always protected him. This protection was not always through physical presence; Baba explains his Guru nurtured him with a merciful glance, much like a mother tortoise on one riverbank feeds her young on the other with her sight alone.