tch his woods", "sound's the sweep" and "dark and deep". The careful repetition of the last line is a major rhetorical device. The effect at this repetition is the establishment at the precise tone of what it mean to have so many tiring miles ahead that must be journeyed before it will be possible to rest. The repetition of "sleep" in the final two lines suggests that the poet may succumb to the influences that are at work. There is no reason to support that these influences are good.
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