And once again, when the river had just increased its flow in the rainy season and made a powerful noise, then said Siddhartha: “Isn’t it so, oh friend, the river has many voices, very many voices? Hasn’t it the voice of a king, and of a warrior, and of a bull, and of a bird of the night, and of a woman giving birth, and of a sighing man, and a thousand other voices more?”
“So it is,” Vasudeva nodded, “all voices of the creatures are in its voice.”
“And do you know,” Siddhartha continued, “what word it speaks, when you succeed in hearing all of its ten thousand voices at once?”
Happily, Vasudeva’s face was smiling, he bent over to Siddhartha and spoke the holy Om into his ear. And this had been the very thing which Siddhartha had also been hearing.

Siddhartha