Dyos is one of the two most powerful gods, the other being Nyos, both whom ruled the universe. Dyos is the god of brightness and creation
Dyos was the discoverer of the planet we know as "Eyrda," which he named. He spent ten million (10,000,000) years on Eyrda, during which time he called on other, unnamed gods to make Eyrda full of life. He left his three children rule of Eyrda.
Before his departure, Dyos left false clues about the star-wheel for Nyos to follow, so that he (Nyos) wouldn't discover its true meaning and would depart Eyrda before causing harm.