Can you elaborate on the metaphor of the mother and child used to describe the Sadguru's grace?

Chapter 3 employs a detailed and touching metaphor to explain the nature of a Sadguru's grace. The Sadguru's love is compared to a mother's for her child. Just as a mother knows her child's hunger and provides her breast without the child even having to ask, the Sadguru intuitively understands the devotee's needs and provides for them. The devotee, like a child, may not comprehend the value of the spiritual 'ornaments' being given, but the Guru, like the mother, finds joy in the act of giving. This selfless, compassionate affection is described as exceedingly rare, and to be its recipient is considered a gift of great fortune.