Describe the introduction to Chapter 47, including the metaphors used to illustrate the power of saints like Sai Baba.

Chapter 47 begins by praising the holy face of Shri Sai as an abode of supreme bliss, capable of destroying the sorrows of infinite births with a single glance. A prominent metaphor is used to convey the purity and power of saints. As described in Chapter 47, the River Ganges, which washes away the sins of the world, becomes soiled herself. To wash away her own accumulated impurities, the river desires the dust from the feet of saints, knowing that without their touch, there is no deliverance from her own sins. This illustrates the supreme purifying power of saints, placing them above even the holy Ganges.