Erg

Erg functions as the essential energy source of the universe, providing sustenance to every facet of creation, including the bodies of creatures, plants, and diverse living entities. This unique energy, force, and power form the foundational support for the existence of all living beings in Iberia. Scholars debate its origin, suggesting that it predates the Age of Divinity and is believed to emanate from the celestial body known as the sun.
In its unrefined state, Erg cannot be directly utilized as an energy source. It undergoes a transformation into an alternative substance, commonly identified as Mana , before being employed for various purposes seen in everyday usages in the years after the Age of Divinity.