What key analogies does Chapter 18 use to illustrate the qualities of the Sadguru?

Chapter 18 employs two significant analogies to describe the Sadguru's nature and grace. The first compares a devotee merging with the Guru to a salt doll dissolving in the ocean, signifying the loss of individual ego. The second, and equally profound, analogy described in this chapter compares the Guru to the "rain clouds of the monsoon, showering the water of self-bliss with love." This beautifully illustrates how the Guru generously and impartially bestows spiritual bliss and love upon everyone, just as rain nourishes the earth without distinction.