What does Osiris represent in Egyptian mythology?

In his role as god of the dead, Osiris became associated with the Egyptian practices of embalming and mummification and was the object of intense worship. When Osiris became lord of the underworld, his son Horus became ruler of Egypt. The Egyptians believed that when a pharaoh, or king, died, he became the god Osiris. Osiris is the god of the dead

Osiris was a god of the dead. He let the dead ghosts of people into their afterlife. He chose to send them down, or let them stay balanced.