In Egyptian mythology, the god of the afterlife and the underworld is Osiris. He is often associated with resurrection and the cycle of life and death. Osiris represents the agricultural fertility of the Nile, as he is tied to the land's renewal. His ruling over the afterlife signifies the importance of funerary traditions, and he is frequently depicted as a mummified figure. Osiris's story illustrates themes of death, rebirth, and the enduring nature of the soul.