Ceres

She's the goddess of agriculture in its widest sense. Not only does she make plants grow from the earth and fill the world with flowers, but she's also the one who taught humanity to plaow the fields, yoking the oxen to the plow and it was also she who gave us the first and most important cereal, spelt. She's therefore portrayed with a crown of spikes and flowers on her head. As Ceres is the lady of the plow, she's also the keeper of the city borders. The limits of the City were, in fact, traced by Romulus with a plow. She also protects the inhabitants, the people, and she's traditionally the protector of the plebs . Ceres is the symbol of motherly courage. She did not hesitate to venture inside Hades to take back her daughter Proserpina, whom Pluto had abducted and taken to his otherworldly realm to marry. For this reason, Ceres is considered the guardian of the door that leads to the Afterlife. In each city there is a sacred pit, called "Mundus Cereris," which is opened three times a year and that connects the earthly world to and the Underworld. Since the harvest, and therefore the Empire's prosperity or hunger, depends on this goddess, her cult is entrusted to an entire college of priests, the Arval Brethren.