User blog comment:BlackWizardZeref/The Origins of Fairy Tail/@comment-1359322-20131012155325/@comment-24039250-20131012155757

In chapter 340 when he says "He looks forward to a new age that will purify all of this" the this part is a reference to all of the hate, evil and spite that exist in the world. The golden age was from another translation but I felt that that phrasing worked well with what he is trying to say. The purifying age that he hopes for, is a reference to the "Golden Age"