A canopic jar was an item used by the ancient Egyptians. When a body was mummified, the internal organs were removed and stored in canopic jars. Such jars were usually made from limestone or pottery.
When Nephthys was imprisoned, her mind was split, and her intellect and reasoning were stored in a canopic jar in her tomb. (PROSE: The Sands of Time)
Sekhmet's tomb held canopic jars containing the remains of the royals, Princess Alixlyr of Mars, Queen Elspera of Peladon and Princess Pandora of Earth. Sekhmet used these jars to break the blood locks on her imprisonment. (AUDIO: The Bride of Peladon)