Bolesław Prus,
The Pharaoh and the Priest: An Historical Novel of Ancient Egypt
“ Now—and this is no secret for thee, worthiness—this shade, the Ka, is like a man, but looks as though made of most delicate mist. The shade has a head, hands, body, it can walk, speak, throw things or carry them, it dresses like a man, and even, especially during a few hundred of the earlier years after death, must take some food at intervals. But the shade obtains its main strength from the body which remains on the earth here. Therefore if we throw a body into a grave it spoils quickly and the shade must satisfy itself with dust and decay. ”
