Mithrason Sep 30 in Blog Post by johnhornor
The following was copied and pasted from that wonderful site, Wikipedia, which I donate 15 bucks to every month. And you should too, if you use it.
In every Mithraeum the centrepiece was a representation of Mithras killing a sacred bull; the so-called tauroctony.
The image may be a relief, or free-standing, and side details may be present or omitted. The centre-piece is Mithras clothed in Anatolian costume and wearing a Phrygian cap; who is kneeling on the exhausted bull, holding it by the nostrils with his left hand, and stabbing it with his right. As he does so, he looks over his shoulder towards the figure of Sol. A dog and a snake reach up towards the blood. A scorpion seizes the bull’s genitals. A raven is flying around or is sitting on the bull. Three corns of wheat are seen coming out from the bull’s tail, sometimes from the wound. The bull was often white. The god is sitting on the bull in an unnatural way with his right leg constraining the bull’s hoof and the left leg is bent and resting on the bull’s back or flank. The two torch-bearers are on either side, dressed like Mithras, Cautes with his torch pointing up and Cautopates with his torch pointing down. Sometimes Cautes and Cautopates carry shepherds’ crooks instead of torches.
The event takes place in a cavern, into which Mithras has carried the bull, after having hunted it, ridden it and overwhelmed its strength. Sometimes the cavern is surrounded by a circle, on which the twelve signs of the zodiac appear. Outside the cavern, top left, is Sol the sun, with his flaming crown, often driving a quadriga. A ray of light often reaches down to touch Mithras. Top right is Luna, with her crescent moon, who may be depicted driving a biga.
In some depictions, the central tauroctony is framed by a series of subsidiary scenes to the left, top and right, illustrating events in the Mithras narrative; Mithras being born from the rock, the water miracle, the hunting and riding of the bull, meeting Sol who kneels to him, shaking hands with Sol and sharing a meal of bull-parts with him, and ascending to the heavens in a chariot. In some instances, as is the case in the stucco icon at Santa Prisca mithraeum, the god is shown heroically nude. Some of these reliefs were constructed so that they could be turned on an axis. On the back side was another, more elaborate feasting scene. This indicates that the bull killing scene was used in the first part of the celebration, then the relief was turned, and the second scene was used in the second part of the celebration. Besides the main cult icon, a number of mithraeums had several secondary tauroctonies, and some small, portable versions, probably meant for private devotion have also been found.
 The banquet
The second most important scene after the tauroctony in Mithraic art is the so-called banquet scene. The banquet scene features Mithras and the Sun god banqueting on the hide of the slaughtered bull. On the specific banquet scene on the Fiano Romano relief, one of the torchbearers points a caduceus towards the base of an altar, where flames appear to spring up. Robert Turcan has argued that since the caduceus is an attribute of Mercury, and in mythology Mercury is depicted as a psychopomp, the eliciting of flames in this scene is referring to the dispatch of human souls and expressing the Mithraic doctrine on this matter. Turcan also connects this event to the tauroctony: the blood of the slayed bull has soaked the ground at the base of the altar, and from the blood the souls are elicited in flames by the caduceus.