Archaeological Museum of Eleusis:
A marble votive in the shape of a piglet. (Roman period)
Pigs were closely associated with the worship feasts of Demeter and Kore. According to one version of the myth when the ground split underneath Persephone, along with her a herd of pigs also fell into the underworld. The swineherd Eubouleus who kept the herd sometimes is also conflated with a disguised Dionysus, or Hermes, which also involves them in the abduction of Persephone. Eubouleus also appears as a seperate mythological figure and is also thought to be the first one to inform Demeter of Persephone’s abduction.
Pigs were also sacrificed and cooked in the celebrations of Thesmophoria in Autumn. Thesmophoria were a three day celebration attended by married women in honour of Demeter and Kore. “Pig” or rather “piggy” appears as a euphemism for female genitalia and there are certain rites in Thesmophoria that connect pork to the female reproductive system.
For instance certain pieces of pork would be buried and left to rot, and then they would be uncovered and placed on altars for the rites in which women emulated Demeter’s mourning. Then at the conclusion of the festival these pieces of meat would be mixed with the grain that would be sowed to the fields as a form of blessing.
There is a certain symbolism in this act of mixing something dead and infertile with something alive and fertile, where life and death draw their powers from each other.
Of course the sacrifice of pigs and the consumption of pork in Autumn, also had a practical side to it, since it was the animals that couldn’t survive the winter that were chosen to be sacrificed.