Psykers The extrasensory, seemingly magical abilities of the psychically-gifted individuals known in the Imperium of Man as psykers are powered by the energies of the Warp, and when such power is used, the daemons and creatures of the Immaterium are drawn to the psyker's mind like moths to a flame. Those humans trained in the use of the psychic arts are able to resist such incursion to a degree, but the greatest fear of the Inquisition is the fact that an untrained human psyker of sufficient power can become the target of daemonic possession -- and a gateway for the intrusion of the daemonic servants of the Ruinous Powers into the physical world. Warp Entities The Warp, through a realm of pure psychic energy that is inimicably hostile to all forms of organic life from realspace, is home to its own forms of life, sentient and otherwise. Many of these creatures are not sentient but depend upon the absorption of psychic energies to survive and are thus naturally drawn to the psychic emanations of mortals in realspace whose psyches are the very wellspring of the Empyrean. Such creatures include the Vampire, Psychneuein, Astral Spectre, Astral Hound, and the hideous Enslavers. Enslavers are spontaneously created by the shifting energies of the Warp from the nightmares of sentient species, and prowl the Immaterium like sharks. The Enslavers are able to psychically control other species, forcing them to their will, hence their name. Enslavers are able to control almost any species, even creatures such as Tyranids and daemons! However it is thought that the only race immune to the Enslavers are the Necrons, who have no souls nor psychic presence in the Warp. Enslavers exist primarily in the Warp, but can enter the physical universe like a daemon through the unprotected mind of a human psyker. They are able to do this when three Enslavers band together to form a 'trinity', whereupon they form a psychic bond with their psyker victim. Over the course of the next 2-3 days after contact is made, the psyker's organic chemistry changes significantly, the end result being a living, pulsing Warp Gate, through which the Enslavers travel into the material universe. Enslavers are rather like an octopus in shape, their main body being made up of two roughly circular parts, one on top of the other. They have 8-12 small tentacles protruding from their bottom half, and 2 larger tentacles ending in suckers. On the smaller, upper half of their body, they have a sensory organ sometimes referred to as an 'eye'; this circular organ is normally reddish in colour. Their leathery skin is able to change colour, but is normally a light brown with pale tentacles. But far worse than these creatures are the truly intelligent denizens of the Warp, the Daemons of Chaos. Starships that travel through the Immaterium by use of a Warp-Drive are shielded from attacks by these creatures by their generation of a Gellar Field. Should this field's emitters fail or malfunction, the crew of the ship will be at the mercy of all of these horrors, and will likely be consumed by daemons or become their mortal playthings. The Warp is also the home of the greatest of all terrors, the four major Chaos Gods -- Khorne, Nurgle, Tzeentch and Slaanesh -- who each dwell within a separate kingdom within the Realm of Chaos, the existential embodiments of the darkest aspects of countless sentient species' psyches. Though the Immaterium and the Ruinous Powers are essentially composed of the same kind of psychic energy and the terms "Warp" and "Chaos" are often used interchangeably by those who are aware of the nature of the Immaterium within the Imperium of Man, each Chaos God maintains a primary form that embodies their nature and that is instantly recognisable to their legions of daemonic and mortal followers.