It was a joy that was to last for half the length of the year, for six months later, in accordance with ineluctable divine law, Persephone was forced to return to the underworld. Demeter’s distress at this parting caused the trees to shed their leaves and a dead time to creep over the world. Another six months passed, Persephone emerged from Hades’s domain, and the cycle of birth, renewal, and growth began again. In this way the seasons came about, the autumn and winter of Demeter’s grieving for the absence of her daughter and the spring and summer of her jubilation at Persephone’s return.