How does Chapter 47 use metaphorical language to describe the power and grace of Shri Sai?

Chapter 47 employs rich metaphorical language to convey the divine power of Shri Sai. His merciful grace is compared to the sun, in whose light the "firefly of worldly existence hides, losing its luster," signifying how worldly troubles diminish in his presence. The chapter also describes Sai as "the eye of the eyes and the ear of the ears," a metaphor for his omniscience and his intimate presence within the devotee's own consciousness. Furthermore, the purifying power of saints' feet is compared to the Ganges river, which seeks the dust from their feet to cleanse its own accumulated impurities, elevating Sai's status above even the holiest of rivers.