An offer and a purpose
Almost 350,000 years ago, the Seven Great Gods of creation had come to Genaerrsis from another universe and using their power molded the already existing world, transforming it into a place capable of harboring life.
Years later, the gods began to fill the material plane with all kinds of life forms and created the first three races, each with its distinctive qualities and characteristics.
The Humans, the Alument, and the Asrakians.
But, as the gods were very powerful beings made of pure energy, they couldn't stay on the material plane.
If they did, their very presence could cause anomalies and disturbances in the universe, and simply descending directly into the earthly plane would cost them an enormous amount of the divine energy that made up their bodies.
If a god lost too much divine energy, then they could no longer exercise their power and would be forced to remain in a state of lethargy until they could recover. During that state a god was vulnerable.