"I walk across the dreaming sands under the pale moon: through the dreams of countries and cities, past dreams of places long gone and times beyond recall." ~Dream, in Brief Lives.

Dream is one of the seven Endless, who are powerful beings older than gods. He is both the personification, as well as the lord over all dreams and stories, and all that is not in reality (which, in turn, Dream may define by his existence). He has had many names such as Morpheus, Kai'ckul, Sandman, and Oneiros. His appearance can change, depending on the entity looking upon him. He is described in Season of Mists as appearing to mortals as "rake-thin, with skin the color of falling snow" and that he "casts a human shadow when it occurs to him to do so".