Canine Karmic Carriers
Greek mythology tells about the three-headed Cerberus a fearsome watchdog beast with anywhere from 3 to 50 heads and a snake-like tail. Cerebus guarded the entrance to Hades where he allowed people to enter but never leave.
Native American folk lore explains how wolves can transform themselves into human form and live, marry and have children. These ghost people are great drummers at parties so it's told.
Dogs are almost univerally admired for attributes of heroism and devotion to their owners and masters which makes them popular subjects in folk and peasant artworks.
Dogs appear in underworld scenes on Mayan pottery and dog skeletons are frequently found in Classic Maya burials which indicates that Mayans believed dogs guided souls of humans on their journey into the underworld.