"Beyond the boundaries of physical space, unrestricted by time or causality, there is a dimension utterly incomprehensible to mortal minds. It lies on the other side of dreams and nightmares, infinite in scope but without form or structure." - Codex: Chaos Daemons, pg 6
"The realm of Chaos exists far outside imagination; an impossible abstraction made real only by metaphor and the roiling emotions of mortal minds. It is constantly reborn but has never changed, eternally shifting though endless in potential. No mundane sense can see, smell or hear it, and even the most powerful psykers cannot glean the Warp's true nature, lest they be driven insane. It is a place where gods thrive in constant war, fighting over the raw stuff of creation that birthed them. In this unknowable realm, titanic hosts clash, locked together in a conflict as old as the universe that can never be won." - Codex: Chaos Daemons, pg 6
"Timeless and ever-shifting, this psychic expanse is known as the Realm of Chaos, the Warp, the Immaterium or Warp space. It is a dimension parallel to our own, a universe devoid of consistency and unbound by the laws of time and space, a random, unstructured panorama of pure energy and unfocused consciousness. It is Chaos in its truest sense, unfettered by the limits of physics and undirected by intelligent purpose. Warp space is Chaos, Chaos is Warp space; the two are indivisible." - Codex: Chaos Daemons, pg 6
"The Realm of Chaos is anathema to the laws of physics and ships that navigate its depths do so by taking a skin or bubble of 'reality' with them when they enter." - Codex: Chaos Daemons, pg 7