In regard to Adonis, his connection with the boar was not always explained by the story that he was killed by a boar. According to another story, a boar rent with his tusk the bark of the tree in which the infant Adonis was born.(186) According to another story, he was killed by Hephaestus on Mount Lebanon while he was hunting wild boars.(187) These variations in the legend serve to show that, while the connection of the boar with Adonis was certain, the reason of the connection was not understood, and that consequently different stories were devised to explain it. Certainly the pig was one of the sacred animals of the Syrians. At the great religious metropolis of Hierapolis pigs were neither sacrificed nor eaten, and if a man touched a pig he was unclean for the rest of the day. Some people said this was because the pigs were unclean; others said it was because the pigs were sacred.(188) This difference of opinion points to a state of religious thought and feeling in which the ideas of sanctity and uncleanness are not yet differentiated, and which is best indicated by the word taboo. It is quite consistent with this that the pig should have been held to be an embodiment of the divine Adonis, and the analogies of Dionysus and Demeter make it probable that the story of the hostility of the animal to the god was only a modern misunderstanding of the old view of the god as embodied in a pig. The rule that pigs were not sacrificed or eaten by worshippers of Attis and presumably of Adonis, does not exclude the possibility that in these cults the pig was slain on solemn occasions as a representative of the god and consumed sacramentally by the worshippers. Indeed, the sacramental killing and eating of an animal, that is the killing and eating it as a god, implies that the animal is sacred, and is, as a general rule, not killed.(189)