Can you explain the analogies used in Chapter 18 to describe the Sadguru's nature and grace?

Chapter 18 employs two key analogies to describe the Sadguru. First, a devotee approaching the Guru is compared to a salt doll entering the ocean; the doll dissolves, signifying the complete merging of the self and the loss of ego in the Guru's presence. Second, the Guru is likened to "the rain clouds of the monsoon, showering the water of self-bliss with love." This illustrates that the Guru's grace is abundant, life-giving, and bestowed universally upon all, just as rain falls everywhere. Both metaphors, found in Chapter 18, emphasize transformation and the boundless nature of the Guru's love.