Final answer:
The passage's theme is that war leaves enduring scars.
Step-by-step explanation:
The theme of the passage is that war leaves enduring scars. The lonely warrior in the passage is described as scarred with sword-points and weary of weapons, indicating the physical and emotional toll that fighting has taken on them. The passage also mentions being wounded with iron, sated with battle-play, and witnessing much from the strokes of war, further emphasizing the lasting impact of war.
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