Rahel watched Estha with the curiosity of a mother watching her wet child. A sister a brother. A woman a man. A twin a twin.
She flew these several kites at once.
He was a naked stranger met in a chance encounter. He was the one that she had know before Life began. The one who had once led her (swimming) through their lovely mother's cunt.
Both things unbearable in their polarity. In their irreconcilable far-apartness.