How does the story of Kaka Mahajani's friend serve as a practical example of the philosophical ideas about perception presented earlier in the chapter?

The story of Kaka Mahajani's skeptical friend powerfully illustrates the philosophical concepts discussed at the beginning of Chapter 35. The chapter first explains how a devotee can experience Sai so completely that the "triad" of perception—like "the heard, the hearer, and the hearing"—shatters and duality vanishes. The friend's experience is a direct demonstration. As a skeptic, he hears Baba's voice, and for him, the sound is not merely an external stimulus. Instead, it becomes a deeply personal experience that perfectly imitates his deceased father's voice. This sensory input is so profound that it shatters his preconceived intellectual resolve and dissolves his skepticism, causing him to bow instinctively. This perfectly exemplifies the chapter's teaching on how Sai can be perceived directly through the senses to erase doubt and duality.