Painting on a vase produced in Attica, dating to about 450 B.C., now
in the British Museum, London. The image represents Dionysus in ecstasy,
in the act of dismembering a panther. The dismemberment (sparagmós)
of a victim was a constituent of the Dionysian ritual. In this case,
the god is represented performing the act that was executed by his worshipers.
The panther was an animal frequently associated with Dionysus (Detienne
1977), who indeed wear on his shoulders this animal’s skin, as
to signify the possibility of the god to transform himself into animal
shape. In various mythical tales, indeed, Dionysus turns into a lion,
a bull, a panther, and in the shape of a plant, too, mainly in that
of the vine plant (Stella 1956, p. 365). The god and the animal immolated
by him come to be identified, just as the participants to the cult ended
up with becoming absorbed into the divinity himself, eating the raw
meat of the sacrificed animals.
[Fonte: http://wps.ablongman.com/long_powell_cm_7/212/54495/13950740.cw/content/
index.html]