How did Sai Baba describe his own experience and relationship with his Guru?

Sai Baba described his relationship with his Guru as one of intense, loving devotion and service that spanned twelve years. In the narrative found in Chapter 19, he says he wore himself out serving his Guru, who was a "great Auliya" and an "ocean of mercy." Baba's focus on his Guru was absolute; he would gaze at his Guru's face day and night, feeling neither hunger nor thirst, and his mind was restless without him. He explains that his Guru nurtured him like a child, providing for all his needs and protecting him with a merciful glance, much like a mother tortoise feeds her young from afar with her sight alone. Despite this deep connection, Baba emphasizes that his Guru never gave him a secret mantra, instead showering him with love and protection.