Nobody in Shelley's poem replies. The speaker addresses a star, the moon and the wind in turn, asks each where it will finally rest, and then stops. Three questions are followed by three silences. That silence is the point. The poem is about restlessness, about the sense that the things we watch moving across the world never seem to arrive anywhere. By treating star, moon and wind as tired travellers, the speaker lets a note of loneliness into the natural world, and the question "where can anything rest?" hangs in the air without being settled.
The construction is neat and almost song-like. There are three stanzas of four lines, and each begins with a direct address: "Tell me, thou Star," "Tell me, Moon," "Weary Wind." In each, the first three lines share one rhyme (light, flight, night; gray, way, day; wanderest, guest, nest), and a shorter fourth line closes the stanza with a question. The rhythm is a light, falling trochaic beat, stressed syllable first, which makes the lines skim along as if in motion themselves. Because the triple rhymes arrive so quickly, the reader is carried along just as the star is "speed[ing]" in its "fiery flight." The shorter last line then acts like a brake, and the question lands in a small, hesitant space. In the first two stanzas that line ends on the same word, "now" ("close now," "repose now"). The repeated word makes the questions sound insistent and a little impatient, as if rest were wanted at once. The third stanza breaks the pattern. It ends on "billow," a softer, trailing word, and the ear, which has twice been given "now," is left waiting for something that doesn't come.
The imagery moves downward. The star is highest, with "wings of light," and its "pinions" are pictured folding up in a "cavern of the night." Night becomes a place with hollows where a traveller might shelter. The moon comes next, lower and fainter, "pale and gray," a "Pilgrim of Heaven's homeless way." The phrase is a quiet paradox. A pilgrim normally has a holy destination, but this one walks a road that belongs to no one and leads to no door. The words "night or day" admit that the moon can't even be sure when its resting-time is. Finally the wind reaches the earth itself, searching for a "secret nest" in a "tree or billow," on land or on sea. The bird imagery ties the stanzas together, since "wings" and "pinions" in the first stanza find their echo in the "nest" of the last. The one thing that would answer the wanderer's need is mentioned only as something that might exist.
The word choices carry the feeling. "Weary" is given to the wind, a force we usually think of as tireless. "Homeless" and "rejected guest" turn an atmospheric fact into a story about exclusion: the wind is someone the world has turned away from its door. Notice too how "guest" and "nest" sit side by side in the rhyme. The welcome and the shelter are only a sound apart, yet the poem never confirms them. The archaic "thou," "wanderest" and "Seekest" give the questions a gentle, almost prayerful formality, as though the speaker were addressing old companions rather than scientific objects. Shelley's wind elsewhere, in "Ode to the West Wind," is a "Wild Spirit" to be commanded; here it is a small, tired figure, and the contrast shows how flexible the same element could be in his imagination.
The poem's significance lies in this compression. In twelve lines it takes a typically Romantic habit, speaking to nature as if it could listen, and turns it toward sympathy rather than awe. Judging by the imagery, the star, moon and wind may also mirror the speaker's own condition. The poem never says so, but its tenderness toward their homelessness suggests a human sadness behind the questions. Leaving the questions open is what keeps the poem alive. A reassuring answer would close it, while the unanswered "now" keeps the reader wondering where, if anywhere, the world's wanderers come to rest.