Dustmen

The Dustmen is one of the Factions that contest for the minds and souls of Sigilites in the Planescape setting for Dungeons & Dragons. An extremely weird blend of fatalism, nihilism, cynicism and Buddhism, the Dustmen believe in a principle of cosmic reincarnation between Life and Death - the thing is, they believe they, and everything else in the multiverse, is Dead.

Founded by the nihilistic lich Skall, the Dustmen argue that since suffering is endemic to all parts of the multiverse, clearly, the entirety of the known multiverse is some sort of grandly convoluted afterlife, using things like physical sensation and emotions to trick the souls trapped in it into believing themselves "alive"; as a result, they constantly die and then "anti-reincarnate" into this hellish afterlife over and over again. Only by accepting ones status as one of the dead and seeking to become as lifeless as possible can one hope to transcend this "False Life" and eventually attain the miracle of reincarnation into True Life. To this end, the Dustmen strive to be as stoic, bland and emotionless as possible, so much so that the undead actually tend to mistake them as being dead themselves. In fact, unbeknownst to the Dustmen, the highest members of their group are all undead.

The Factol's Manifesto strongly implies that this Faction may actually be a long-running ploy on Skall's part to ultimately build an army of the undead so massive he can forcibly extinguish all life throughout the cosmos. He genuinely believes the nonsense he's babbling about life being suffering, but that still makes it a conjob on at least some level. Fortunately, Skall gets himself Mazed during the Faction War.