Creating the Eternals and Deviants
During the creation of the universe, the leader of the Celestials, Arishem the Judge, created the Deviants within the World Forge in order to hunt down all apex predators within a planet. Once the Deviants went rogue, Arishem created the Eternals to prevent the Deviants from annihilating a planet's whole population.
Arishem showed Sersi a recreation of the World Forge, revealing the Eternals' true origin, that the Eternals were created alongside with the Deviants, and that their memories were stored within the World Forge when they were reset by Arishem.
- In the comics, the Great Machine is a sentient mechanism that creates and organize the life of the Eternals and regenerate those who are deceased.