In countries where a strong wind sweeps across the land and makes the fields fruitful, there is a custom among the farmers that is called winnowing. Every year, after the harvest, when they have threshed the corn, they bring it outside in front of the barn. They all throw the grain into the air. The good, heavy kernels fall to the ground, while the light chaff is carried away by the wind. The hardest work is done by the wind. Who knows if one can also winnow thoughts?