What analogy does the author use in Chapter 3 to explain Sai's grace in the creation of the Satcharitra?

In Chapter 3, the author humbly presents himself as merely a pretext or instrument for the creation of the work, attributing its existence entirely to Sainath's grace. To illustrate the nature of this grace and Sai's love, the author employs a powerful analogy. As mentioned in Chapter 3, Sai's love is compared to that of a motherly cow who feels a surge of milk and cannot withhold it from her calf. This is described as the natural habit of the cow, symbolizing how Sai's love and grace flow naturally and abundantly to His devotees, like a cloud of joy raining down to satisfy their spiritual thirst.