The term 'the once and future king' refers to the legendary figure of King Arthur, symbolizing the hope for his return and the ideal of a just ruler. This phrase captures the essence of Arthurian legends, highlighting themes of chivalry, leadership, and the cyclical nature of history where a great leader may rise again in times of need. It underscores both Arthur's past reign and the enduring belief in his potential to restore peace and justice in a troubled world.
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