Why is the symbol of Demeter cornucopia?

The cornucopia, or "horn of plenty," symbolizes abundance and nourishment, which are central themes associated with Demeter, the Greek goddess of agriculture, harvest, and fertility. As the provider of grain and sustenance, the cornucopia represents the rich bounty of the earth and the prosperity that comes from successful harvests. This symbol reflects Demeter's role in ensuring that crops flourish and that communities have food, emphasizing her connection to agricultural fertility and the cycle of life.