The Endless (Destiny, Death, Dream, Destruction, Desire, Despair and Delirium) are a group of beings who embody various aspects of the universe in the DC comic book series The Sandman, by Neil Gaiman. They have existed since the dawn of time and are thought to be some of the most powerful (or at least influential) beings in the Sandman universe, and play a central role throughout the series, Dream being the main protagonist.
In the Breath of Fire universe, Endless are beings from another dimension that are summoned into the world of the game. Endless are immortal, possess great power, and are perceived as gods and goddesses. The term Endless however, did not appear until Breath of Fire IV, and the term may only apply to that installment, though characters such as Deis and Myria fit this description perfectly.