Who is The Firstborn from Time's Eye and what is their importance?

Not even remotely human, the Firstborn come from a planet that was one of the first stars of all. It was a beacon in a still dark universe, fat with hydrogen. They were a vigorous race and the universe was full of energy, but as they looked ahead, they saw nothing that resembled themselves and no mind that was similar. The bright, early stars died quickly and new generations of long living stars emerged from the death of these early stars, but to the Firstborn it was like a terrible abandonment. Looking ahead, they can only see an ever darkening universe, and realize that with every generation of stars, the rebirth of the next is more difficult. Despite their power, they are unable to change the fact that the day will come when the last of light flickers and dies.