In order to enter real space in greater numbers Daemons need to use Warp rifts. These are breaches in the fabric of reality that can vary in nature and size. At times a Daemon can possess a mortal and turn him into a portal through which whole hosts can pass. These daemonic incursions are followed by maelstroms of warp energy and can taint real space severely, often twisting and reshaping whole planets until they are lost and turned into [[Daemon World]]s.{{Fn|7}}{{Fn|42}} This is worsened by the fact that the aforementioned warp energy will provoke primal terror in even the most emotionless warriors.{{Fn|42}} It is not surprising that the [[Imperium]]'s [[Ordo Malleus|Daemonhunter]]s are granted unlimited resources to deal with such threats.{{Fn|5}}