 studying storm on the island. Here's how you can analyse this poem. In terms of structure the poem is written in one stanza. The poem opens with caesura highlighting how the humans think they can control nature. The poet uses the words houses slate and walls which belong to the semantic field of buildings. This shows that the people on this island think they can use man-made objects to control nature. The earth is personified as having never troubled us, showing that the people on this island falsely believed that earth was very passive. However this onomatopoeia blasts shows that nature has a dark dangerous side. The repetition of the words no here show that the people on the island feel really vulnerable to being attacked by nature. The oxymoron here shows that nature can be both calm as well as explosive. The poet uses this sibilance and metaphor to show that nature is about to attack these people on the island. The caesura and the oxymoron at the end shows the terrifying side of nature.