"We're All Mad Here…."
There is a curious connection between dogs and travel to the realm of the dead. It can be found particularly in Indo-European mythologies, although it also occurs in Egypt, Siberia, and north America. According to the Vedic mythology of ancient India, for instance, the deceased must pass by the four-eyed dogs of Yama, king of the dead; and Greek mythology tells of the dog Kerberos, popularly endowed with three heads, who watches the entrance to Hades. Mention must also be made of the white, red-eared hounds of Celtic myth. But the idea of the underworld watchdog appears to have reached its fullest, and most complex expression among the Germanic peoples.