Ancient Egyptian deities purposes. Egyptian texts often refer to deities' true, underlying forms as "mysterious". The Egyptians' visual representations of their gods are therefore not literal. They symbolize specific aspects of each deity's character, functioning much like the ideograms in hieroglyphic writing. For this reason, the funerary god Anubis is commonly shown in Egyptian art as a dog or jackal, a creature whose scavenging habits threaten the preservation of buried mummies, in an effort to counter this threat and employ it for protection. His black coloring alludes to the color of mummified flesh and to the fertile black soil that Egyptians saw as
Anubis evidence that the worship of this god was continued in Rome through at least the 2nd century. Indeed, Hermanubis also appears in the alchemical and hermetical literature of the Middle Ages and the Renaissance. Although the Greeks and Romans typically scorned Egyptian animal-headed gods as bizarre and primitive (Anubis was mockingly called "Barker" by the Greeks), Anubis was sometimes associated with Sirius in the heavens and Cerberus and Hades in the underworld. In his dialogues, Plato often has Socrates utter oaths "by the dog" ("kai me ton kuna"), "by the dog of Egypt", and "by the dog, the god of