Egypt Feeds The KaEgypt labels the force substance as ka, and Egypt is explicit that it needs feeding. The entire temple economy is built to keep the dead king's ka supplied with offerings. Estates, granaries and whole administrative classes exist to service that unseen hungry metabolism. An entire economy sustained in the service of a theology. Dr Heather Lynn likens this unseen substance to many cultural names: Hindu India calls it prana. China calls it qi. Hebrew calls it nephesh. Greece calls it pneuma. Rome calls it spiritus. The Nazis, much later, call it vril. Christianity calls it the soul.Some kind of life-substance that is carried in breath and blood, that can be concentrated, and that can be moved from one place to another.