Bident Jupiter (also known as Jove, Etruscan Tinia), the trident or bident thus represents a forked lightning bolt. In ancient Italy, thunder and lightning were read as signs of divine will, wielded by the sky god Jupiter in three forms or degrees of severity (see "manubia"). The Romans drew on Etruscan traditions for the interpretation of these signs. A tile found at Urbs Salvia in Picenum depicts an unusual composite Jove, "fairly bristling with weapons": a lightning bolt, a bident, and a trident, uniting the realms of sky, earth, and sea, and representing the three degrees of ominous lightning (see also
Proserpine (play) Proserpine. Ceres appeals to Jove for assistance, and Iris appears, saying that Proserpine's fate is fixed. However, Jove agrees that if Proserpine does not eat the food of the Underworld, she can return. The group leaves to fetch Proserpine, who believes she has not consumed any tainted food, but she is reminded by Ascalaphus, a shade of the Underworld, of some pomegranate seeds that she ate. Ceres, Ino, and Arethusa volunteer to exile themselves to the Underworld, taking their treasures, such as fertility, with them. However, their sacrifice is not permitted. Iris relates Jove's decision regarding Proserpine's fate: Ceres promises