Back in the Ancient Era, when the gods and fallen dwelled openly among men and waged wars against each other, both sides began to harness their specific codes and granted them to the races.
The Code of the Gods and the Code of the Fallen were both gifted to creation so that creation could grow strong and aid them in their conquest.
Those bestowed with the Codes and received several blessings soon understood what it meant to be gods. As Gods and Fallen were not limited by time, space, and energy, they could perform things and see things vastly different from what humans could.
Just as a dog will only have the instinct of a dog and bark, bite, chase, and sniff, so were creation limited to their biological constraints. In fact, no race in all creation had true freedom. They were limited in their thinking, craving, and their cultivation.