A schism between hegemony and Dae'Uhl amongst the Protoss were a contributing factor as to why the Dark Templar left Aiur. Many of the origin Nerazim felt themselves the custodians of continual Protoss security, scouring deep space for potential external threats and "absolving" Protoss society free of potential revolutionaries, often by violent means, while the rest of the Protoss were "safe at home" on Aiur. However, because of their preemptive and aggressive nature, many Hegemons were poorly regarded by other Protoss, who perceived them as brutal murderers who should be excommunicated from the Khala, or at best, disillusioned sentinels paranoid for threats that did not exist.