“All in all, it was as if a clean wind from the blue mountains had blown through this army, sweeping away weariness and doubt and restoring the spirit with which the men had first started out; restoring, for the last time in this war—perhaps for the last time anywhere—that strange, magical light which rested once upon the landscape of a young and totally unsophisticated country, whose perfect embodiment the army was. In a way, this army was fighting against reality, just as was Lee’s army. The dream which possessed the land before 1861 was passing away in blood and fire. One age was ending and another was being born, with agony of dissolution and agony of birth terribly mingled; and in the Army of the Potomac—in its background, its coming together, its memories of the American life which it imagined it was fighting to preserve—there was the final expression of an era which is still part of our heritage but which is no longer a part of any living memories.”