Can you tell me about Sai Baba's relationship with his own Guru?

Sai Baba described his relationship with his Guru as one of profound love and intense devotion. In Chapter 19, he recounts serving his Guru for twelve years, feeling immense joy in this service. He refers to his Guru as an 'ocean of mercy' and an 'idol of devotion and love.' Baba's focus was so complete that he would gaze at his Guru's face day and night, feeling neither hunger nor thirst. He explains that his Guru protected him with a merciful glance, comparing it to how a mother tortoise on one riverbank nurtures her young on the other simply by looking at them. This constant contemplation was all his Guru expected, and in return, Baba received unending love and protection.