Like so much with Greek mythology, there are many different examples of cause and effect in the myth of mother and daughter. Cupid's arrow striking Hades is one example of a cause that triggers the narrative in motion. Once the cause of Cupid's arrow becomes established, the effect is that Hades covets Proserpine. This leads him to emerge from the underworld and take her as his own. This ends up causing Ceres to wander the Earth searching for her daughter, causing famine and a lack of growth around the planet due to her own unhappiness. The initial causation of Cupid's arrow triggers the sequence that forms the myth. Cupid's arrow causes Hades to fall in love and take Proserpine as his bride. This effect causes great pain for Ceres and thus the myth develops. The most basic example of cause and effect would be at this point. Another example of cause and effect could be that Ceres's curse on the planet causes great suffering to the humans, and thus Jupiter's intervention. The cause of Ceres's curses and pain results in the effect of Jupiter intervening. Once again, cause and effect play significant roles in the development of the narrative of the myth. Greek mythology is predicated upon cause and effect, and the narrative of Ceres and Proserpine follows this same pattern.