Juxtaposition is when two contrasting things are placed close together.
The first part of this poem is positive an full of excitement at stealing the boat. For example, “home”, “pleasure”, “glittering” and “sparkling” create a positive semantic field that highlights the beauty of the natural world.
The second part of the poem is darker and more serious. Wordsworth uses a negative semantic field to show the mountain’s impact. Words such as “grim”, “trembling”, “grave” and “darkness”.
This juxtaposition highlights the insignificance of humans in comparison to nature