1. Loss of her daughter, Persephone: Demeter greatly fears losing her daughter, Persephone, to Hades, the god of the underworld. This fear stems from the myth in which Hades abducts Persephone, plunging Demeter into deep grief and causing the earth to become barren.
2. Threats to fertility and agriculture: Demeter dreads any threats that may harm the fertility of the land and the abundance of crops. She fears natural disasters, harsh weather conditions, and human actions that could disrupt the natural cycles of growth and harvest.
3. Famine and hunger: As the goddess of harvest, Demeter fears the consequences of famine and hunger. She worries about the well-being of humans, animals, and the entire ecosystem that relies on the fruits of the earth for sustenance.