Chaos

Chaos, also known to its servants as the Primordial Truth or the Primordial Annihilator, and to the Imperium of Man as the Archenemy, is a metaphysical, psychic force embodied by the malevolent entities comprised of emotional energy that exist in the Immaterium.

The entities who embody Chaos are mostly Daemons, but the term also encompasses those mortals who pursue the goals of Chaos, ranging from simple peasants and/or manufactorum labourers who serve as Chaos Cultists, to Traitoris Militarum, planetary militia, Imperial nobles, planetary governors, and even the mighty Chaos Space Marines and Hereteks, Traitor Titan Legions and Chaos Knights of the Dark Mechanicum.

Chaos is also itself the turbulent psychic energy that comprises the alternate dimension known as the Immaterium. It gives shape to the nightmare domains of the individual Chaos Gods that are collectively called the Realm of Chaos by scholars of the Inquisition. Chaos is almost synonymous with the Warp -- the two concepts are inseparable, for Chaos is the limitless ocean of spiritual, psychic and emotional energy that defines the Immaterium and underlies the 4-dimensional material universe of space-time.