Board Thread:Warhammer 40k General Discussion/@comment-24037808-20150127105800/@comment-28917471-20150127141933

Nurgle is more associated with fear, since all of his followers join him out of fear of death. He is the only god who is worshipped for the sake of survival, rather than for the sake of prosperity and advancement.

Fear of death is the greatest phobia. And Nurgle possess the cure for that "disease".