Ka~(ka)~In art the ka was portrayed in several ways: a person identical to the person whom it was associated with, as a shadowy figure, as a person with two upraised arms on his head. The hieroglyph for the ka was the shoulders and arms with the arms bent upwards at the elbow, similar to the "touchdown" gesture in American football. The ka is a symbol of the reception of the life powers from the gods. It is the spiritual double that resides within everyone.
The ka lived within the body of the individual and therefore needed that body after death. This is why the Egyptians mummified their dead. If the body decomposed, their spiritual double would die and the deceased would lose their chance for eternal life. An Egyptian euphemism for death was "going to one's ka". After death the ka became supreme.
When the ka acted, all was well, both spiritually and materially. Sin was called "an abomination of the ka". The ka could also be seen as the conscience or guide of each individual, urging kindness, quietude, honor and compassion. The ka is the origin and giver of all the Egyptians saw as desirable, especially eternal life.