"When my ship comes in" is a stock phrase for luck that is surely on its way, usually said with a little longing. The poem takes that idiom literally. It gives the speaker a real ship, a real harbour and a real cargo, then uses its last stanza to show how far away all of it is.
The first three stanzas are a daydream, and the grammar shows it. The future tense is confident: "When," not "if," and "will come safe," not "might." The first thing the speaker plans to buy is "a brand new pair of shoes." That is a modest wish for a windfall, and it is not meant for show. The shoes are for running "far away." The ship is a way out. Even the fantasy of arrival is really a fantasy of leaving, and the poem never says what is being left behind. That silence invites the reader to supply it.
The second stanza imagines safety through sound. "Crisp sails unfurled" has a clean, snapping quality, and "crisp" echoes the newness of the shoes. "Rough waters far behind" has no verb, so the trouble is dismissed by the grammar itself, a fragment that has already moved on. The third stanza is stranger and more interesting. "Burgeoning" is a word of healthy growth, but it is attached to "weight," which is also a burden. The cargo is wealth and load at once. Then the verbs harden: "forge," "thrust." The speaker does not dream of spending the fortune. She dreams of sealing it in "an unbreakable chest" and throwing away the key. The chest could simply hold treasure, but the word also suggests the body, and the lines may hint at a wish to lock something inside oneself. That is an inference, but the violence of "thrust the key from me" supports it. This is a dream of security so complete that even the speaker could not get at what is inside.
The form is spare. There are four tercets, no end rhyme and no fixed metre. The opening stanza has a short-long-short shape (roughly five, eight, five syllables), which gives it the compressed feel of a haiku-like form. The poem doesn't keep to that pattern, and the lines grow longer toward the end. The final stanza has the longest lines, as though the waiting sprawls where the dreaming was neat. Rhyme is replaced by quieter echoes. The long *e* of "key" and "me" returns in "seas," linking the locked chest to the sea that keeps the ship away.
The last stanza turns on "For now," which pulls the poem out of the future tense. The dash after "linger" holds the speaker still, and "hopeless" arrives flat, with no cushioning. The imagery then undercuts the dream. "Aquamarine" is a gemstone's name, so the sea looks like treasure, but it is "tossing," the same roughness the speaker pictured leaving behind. The rough waters are not behind her. They lie between her and the ship. The poem also reuses its earlier verbless trick. "Rough waters far behind" shrank trouble in stanza two, and "My hope a dot on the horizon" now shrinks hope. The ship has become the dot, and a dot gives no clue whether it is approaching or sailing off.
There is also a quiet contradiction. The speaker calls herself "hopeless" and two lines later says "my hope." Despair is announced, but hope is still being claimed, even at its smallest. The poem ends there, without telling us whether the ship arrives.
The poem is significant for how honestly it handles imagined futures. Nine lines go to the dream and only three to the present, which is how a daydream can feel larger than the life that produces it. The detail is vivid: the shoes, the sails, the forged chest, the thrown key. The reality is one bare image of a speck on the water. The poem never mocks the fantasy or promises it will come true. It lets both stand, and that makes a small poem about waiting feel true.