Paradise, in Poe's poem, is not where the beloved has gone but what the speaker has lost. The title promises a tribute to someone in heaven, yet the final stanza pulls the story down to earth. She was borne "o'er the billow" and taken "from love to titled age and crime, / And an unholy pillow." Judging by those lines, she has been married off to wealth and rank rather than buried, though the poem never states this outright. What remains is a man caught between a golden past and a future he cannot face.
The first stanza builds that past like a storybook picture: "a green isle in the sea," "a fountain and a shrine," everything "wreathed with fairy fruits and flowers." The verbs ("wast," "did pine," "were mine") already place it all behind him. An island is also a small, enclosed world surrounded by water, and the sea that protects it is the same sea that later carries her away.
The second stanza is where the music cracks. "Ah, dream too bright to last!" is a short, breathless line, and the rhymes that follow keep circling the same sound: *last, overcast, past, aghast*. A voice from the Future calls "On! on!", but the speaker's spirit hovers over the Past, which he calls a "Dim gulf," "Mute, motionless, aghast!" The rhyme scheme imitates his state. Like him, it cannot move on from one sound.
The third stanza turns to the sea. Its "No more—no more—no more" is something the waves seem to say to the sands, a simile tucked into brackets so that it sounds like a muttered aside. The repetition works like a tide, and readers who know "The Raven" will hear a cousin of its "Nevermore." Two images of arrested life follow: the "thunder-blasted tree" that cannot bloom and the "stricken eagle" that cannot soar. Each is a living thing cut off from what defines it, and each is the opposite of the flowers and fruit of the opening.
In the fourth stanza the speaker retreats into a different paradise. "All my days are trances, / And all my nightly dreams / Are where thy dark eye glances." Day and night blur, and the beloved turns into pure light, with a glancing eye and a gleaming footstep, moving in "ethereal dances" beside "eternal streams." The repeated "And all" echoes the first stanza's "And all the flowers were mine," but possession has become obsession. She is now something he can only see when he stops living in the real world.
Only in the last stanza does he explain what happened, and the explanation arrives as a curse: "that accursed time." The rhymes loosen into soft, falling endings, *billow, pillow, willow*, which droop like the "silver willow" that "weeps" in the last line. That willow stands in "our misty clime," a homeland far vaguer than the vivid island of the opening. Either memory is fading or the dream is all that is left. Withholding the cause until the end is a shrewd choice, because we feel the grief for four stanzas before we learn its reason.
The poem matters because it shows how much Poe could do with sound alone. It has little plot and little argument. It works by echo, as in the repeated rhymes, the "No more" chant, and the "And all" openings. The result is grief that feels like a loop the speaker cannot step out of. Its lines swell and shrink like a voice breaking into exclamation, yet the lilting beat keeps it close to song, so the sorrow is also strangely beautiful. That mix of beauty and helplessness is why the poem lingers.