Snow is supposed to be soft, which is what makes the first line of "Delirium" so unsettling. "Walls made of snow" builds a prison from the gentlest material available, something that looks harmless yet is cold and still shuts the speaker in. The word "within" closes the next line like a door. Tiago Coelho's poem is about being trapped inside a state of mind, a confinement that nobody else can see and that eventually silences even the person inside it.
The construction is tight. There are three quatrains, each rhymed ABAB: snow and know, within and begin, steel and feel, sky and cry, me and see, screaming and dreaming. The lines are short, mostly four or five syllables, with only two or three beats each, so the poem sounds clipped, like someone who can manage only a few words at a time. The rhymes are plain, almost nursery-simple, and that plainness makes the content harder to hear. The neat, repeating boxes of the stanzas also work as walls of their own, and the speaker never breaks out of them. Against a title that means fevered confusion, this orderly form creates a quiet tension.
The first stanza is about failing to start. "Don't even know / Where to begin" could be the speaker's reaction to the situation, or the poet's reaction to the blank page. Notice, too, "Me living within." The speaker says "me" rather than "I," as if they were an object that has been placed in the snow rather than someone who chose to be there. Nothing in the stanza acts. It only states where things are.
The second stanza turns to colour, and the colours are strange. "Grey as steel" is heavy, hard and cold. "Purple as the sky" is stranger, because the sky is usually the symbol of escape and here it is the wrong colour. In a poem called "Delirium," the line reads as distorted perception, a world that has been tinted by the mind looking at it. Steel is solid and sky is open, yet both feel oppressive. Then comes a quiet grammatical gap: "Everytime I feel, / I just want to cry." The line break leaves "feel" hanging with no object. The speaker doesn't feel sad or afraid. They simply feel, and feeling itself is the trigger. The word "just" adds a note of weary resignation.
The final stanza moves from sight to sound and then back to sight. "Voices inside me / Silently screaming" is an oxymoron, but it fits the snow, which muffles sound in real life. The screams are never heard, whether because the walls swallow them or because they never leave the speaker's head. The plural "voices" suggests a mind that is divided, which again fits the title. After the colours of the second stanza, vision narrows to one thing: "Death is all I see." The last line, "Can't affort dreaming," is printed with "affort," which looks like a slip for "afford." Read that way, dreaming becomes a luxury the speaker can't pay for. It can mean the dreams of sleep or the dreams of hope, and the poem leaves both possibilities open. The closing rhyme matters as well. "Screaming" and "dreaming" differ only in their opening sounds, so the rhyme puts them side by side, and what should be hope ends up sounding like the pain that has replaced it.
The poem never says what caused any of this. Nothing in the text tells us who the speaker is or what happened to them, and it would be a mistake to guess. What remains is the experience, shown through a few well-chosen contrasts: soft snow that confines, a sky that is the wrong colour, a scream with no sound. Its force comes from restraint. It doesn't explain or console, and it has no final stanza in which things improve. The reader is left inside the room, which may be the most honest thing the poem can do.
For students, then, "Delirium" shows how little a poem needs. Twelve short lines, simple vocabulary and basic rhyme are enough to carry a heavy subject, as long as each image does real work. It is also a poem about not knowing where to begin that nonetheless finds a way to begin, and that tension gives it its quiet power.