Can you explain the analogy of the River Ganges used at the beginning of Chapter 47?

The beginning of Chapter 47 uses a powerful analogy involving the River Bhagirathi (Ganges) to illustrate the supreme purity and power of saints like Sai Baba. The text explains that the Ganges, in its role of washing away the sins of the world, becomes soiled with those impurities itself. To cleanse herself, she desires the purifying touch of a true saint. As described in Chapter 47, the river longs for the moment when "the feet of saints touch me" and they "come to bathe within me," knowing that this is the only way to find deliverance from her accumulated sins. This imagery effectively conveys that the spiritual power of a saint is so immense that even the holiest of rivers, a symbol of purification, seeks them out for its own salvation.