Warp

Biodata

Nature and Psychic Energy

• The physical world and the Warp are distinct realms. Human bodies exist in the physical world, while their souls have flame-like projections in the Warp; thoughts and souls create ripples there 1.
• Psykers have a stronger connection to the Warp and can draw on its psychic energy to produce effects that defy physical laws 1.
• Emotions, information, and knowledge can generate power in the Warp. Hades exploits this property by having Magnus teach Ork Weirdboyz, increasing the psychic energy available to his forces 602.
• Time does not operate in the Warp as it does in the physical world; Neos describes its future, present, and past as connected 402 921.

Inhabitants and Dangers

• Warp creatures can notice the brighter soul-projections of Psykers. Their whispers can drive Psykers mad, corrupt them, or enslave them; using psychic powers increases the risk of attracting attention 1.
• Thoughts and intense emotions can also draw Warp entities' attention. In conflict with them, a collapsing mind is more vulnerable to mutation and control 1 409.
• The boundary between realms varies. At the Eye of Terror, the Warp and physical world overlap, making it easier for Warp creatures to appear 409.
• Exposure can have immediate physical consequences: when humans aboard an Ork Combat Moon enter the Warp, a third of the Astra Militarum mutate on the spot 568.

Travel and Communication

• Warp travel enables large-scale, rapid movement across the Imperium. Its military campaigns, logistics, personnel transport, and information flow depend on access to the realm 225.
• Warp storms and turbulence can interrupt routes and communications. When Blackstone Obelisks near the Eye of Terror are set to amplify rather than suppress the Warp, routes close intermittently, Astropaths suffer, and Navigators lose their bearings 404.
• The Emperor's Webway project seeks long-distance travel without dependence on the Warp. The Imperium later uses physical-travel technology, including Quantum Slingshots, when Warp travel is severed 268 576 582.

Suppression and Instability

• Soulless individuals and Blackstone technology can shield against or suppress Warp influence. Hades uses his Null Field to counter Warp entities, while a proposed Blackstone Obelisk matrix could suppress or eliminate the psychic power clinging to Barbarus 138 150 409.
• Blackstone Obelisks can also intensify psychic activity when their state is reversed. Perturabo uses obelisks near the Eye of Terror to release imprisoned storms; Hades later uses one on Cadia to cut off a ritual's psychic power source 404 416.
• The Warp remains important to humanity despite its dangers. During a later crisis, the prospect of its complete destruction raises the question of whether humanity could survive separated from it 920.

Story Role / Major Arcs

• Barbarus: Hades learns that psychic power exposes its users to Warp entities. Later, he devours Calas Typhon's corrupted soul with his Null Field to prevent a Warp rift from opening 1 138.
• The Eye of Terror: Perturabo's manipulation of Blackstone Obelisks destabilizes Warp routes and communications. The struggle culminates in an attempted ritual on Cadia, which Hades interrupts 404 416.
• Later Imperial history: A territory-wide Warp storm severs travel, prompting renewed use of Quantum Slingshots. Mortarion subsequently leads a Death Guard crusade into the Warp against Nurgle 576.
• The Ouroboros plan: Neos seeks to imprison Chaos within a dimension and spacetime tied to the Warp's beginning and end, rather than simply destroy the realm 921 922.