When Nature Fights Back
Everything changes dramatically when a huge mountain peak appears from behind the ridge. Wordsworth uses dark, threatening language that completely contrasts with the earlier beautiful descriptions. The mountain seems alive, with "voluntary power instinct" - as if God himself is punishing the speaker for stealing.
The turning point is crucial here. Simple words emphasised by caesura (pauses) show how the speaker's arrogance crumbles instantly. He's no longer the confident young man - nature has revealed its true power, and he's terrified.
The poem ends with lasting psychological impact. The speaker returns the boat, but he's fundamentally changed. For "many days" afterwards, his mind is haunted by "huge and mighty forms" - it's almost like PTSD from this encounter with nature's awesome power.
Key Point: The cyclical structure brings us back to the willow tree, but notice how the speaker's mood has completely transformed from excited confidence to "grave and serious" reflection.
The repetition of "no" in the final lines shows how this single experience has stripped away his innocent, childish view of the world, replacing it with respect for nature's overwhelming dominance.