Canopic jars are ancient Egyptian containers used to hold the internal organs of mummies during the embalming process. These jars were typically made of stone or pottery and were placed in the tomb alongside the deceased. Each jar was dedicated to one of the four sons of Horus, who were believed to protect the organs. The organs stored in canopic jars included the stomach, intestines, lungs, and liver. Each jar had a specific lid shaped like the head of one of the Horus sons: Imsety, Hapy, Duamutef, and Qebehsenuef. This practice was part of the ancient Egyptians' beliefs in the afterlife and the preservation of the body.