Quote from : 1Q84 Book

His mind floated in the amniotic fluid of memory, listening for echoes of the past. His father, meanwhile, had no idea that such a vivid scene was burned into Tengo's brain or that, like a cow in the meadow, Tengo was endlessly regurgitating fragments of the scene to chew on, a cud from which he obtained essential nutrients. Father and son: each was locked in a deep, dark embrace with his secrets.