The djed is an Egyptian symbol that is depicted as a column with a broad base and capital. At the top of the column the capital is divided by four parallel bars. The image has been interpreted in several ways. It is said to be:
- four pillars, seen one behind the other
- a man's, or Osiris' backbone
- a Syrian cedar with its branches removed
- the pole around which sheaves of grain were tied.
In Old Kingdom times, the djed was associated with the chief god of Memphis, Ptah, who was called the "Noble Djed."
The Djed Pillar Festival was a cultic celebration of the symbol and its powers. It was held annually in Egypt and was a time of great spiritual refreshment for the people. The priests raised the djed pillar on the first day of shemu (the season of harvest on the Nile). The people then paid homage to the symbol and conducted a mock battle between good and evil. Oxen were driven around the walls of the capital, honoring the founding of the original capital, Memphis.