FogCarl Sandburg · Poem
Six lines. One image. Fog described entirely as a cat — arriving on silent feet, sitting over the harbour and city, then moving on. A masterclass in imagist economy: the fewer the words, the sharper the picture.
Poet
Carl Sandburg
Lines
6 lines
Style
Imagism / Free verse
Central device
Implied metaphor
The Poem & Explanation
Full Poem
The fog comes
on little cat feet.
It sits looking
over harbor and city
on silent haunches
and then moves on.
The entire poem is a single six-line imagist piece — no rhyme, no regular metre, no elaborate decoration. A fog rolls into a city, settles silently over the harbour, and then moves on. That is all that happens literally. But Sandburg describes the fog entirely through the metaphor of a cat: it comes 'on little cat feet', it 'sits looking' on 'silent haunches', and then 'moves on'. Every verb and image belongs to a cat — the quiet, padding, unhurried, self-contained arrival, the still watchful pause, and the equally quiet departure. The fog is never named as a cat; it is simply described in cat terms, so completely that the two merge into one image.
Poetic devices
- Extended metaphor / Implied metaphor — The entire poem is built on the comparison between fog and a cat — but the word 'like' or 'as' is never used. This is an implied metaphor, which is more powerful than a simile because the two things are fused rather than merely compared.
- Imagery — 'Little cat feet', 'silent haunches' — both are precise, physical images that make the fog tangible. We can almost feel the soft, careful way the fog moves in.
- Free verse — No rhyme scheme, no regular metre. This mirrors the fog itself — formless, quiet, not following any fixed pattern.
- Personification — The fog is given the physical qualities of a cat — feet, haunches, the ability to sit and look. This gives the fog a quiet, deliberate presence rather than making it a passive weather phenomenon.
- Brevity and understatement — At only six lines, the poem does not explain, argue, or moralize. It simply shows. This imagist restraint is itself a poetic choice — the less said, the more felt.
All Poetic Devices at a Glance
Implied metaphor
Fog described entirely in terms of a cat
The fog and the cat are fused — not compared with 'like' or 'as' but presented as one. This is the poem's central technique and its greatest strength.
Imagery
'Little cat feet', 'silent haunches'
Both images are precise and physical, making the abstract (fog) concrete and sensory. The reader does not just understand the fog — they feel it.
Free verse
No rhyme, no regular metre
The formlessness of the verse mirrors the formlessness of the fog. It is a structural choice that supports the meaning.
Personification
'It sits looking over harbor and city'
The fog is given a consciousness and a body — it looks, it sits, it moves on of its own accord.
Alliteration
'little… looks… looking'
Soft 'l' sounds throughout the poem create a quiet, almost whispering tone that matches the silent arrival of the fog.
Brevity / Imagism
Only six lines — no explanation or moralising
Sandburg was an Imagist: show the image clearly, say nothing extra. The poem trusts the image to carry all the meaning without commentary.
Themes
Nature's quiet power
Fog is not dramatic — it does not crash or roar. It comes silently, rests a moment, and leaves. Sandburg captures how nature's most powerful effects are often its quietest ones. The fog covers an entire harbour and city without making a sound.
Transience — things that come and go
The fog arrives and 'then moves on'. It does not stay. This transience is part of what the cat metaphor captures — cats are famously independent and non-committal. The poem quietly suggests that many things in life — moods, visitors, moments of beauty — arrive silently and leave just as silently.
The power of economy in art
At six lines, Fog demonstrates that a poem does not need to be long to be complete. Every word does work. This is itself a theme for students of literature: the discipline of saying only what needs to be said, and trusting the image to carry the rest.
Extract-Based Questions
Q7 in the board exam: one extract from poetry. Both passages of this poem are examinable.
Extract 1
The fog comes / on little cat feet.
Q1. What comparison is being made in these opening lines? Why is it effective?(3 marks)
The fog is being compared to a cat — specifically to the way a cat moves on its small, soft, silent feet. The comparison is effective because it immediately makes the fog sensory and physical. Fog is formless and invisible in itself; by giving it 'little cat feet', Sandburg makes it something we can almost feel — soft, careful, quiet, deliberate. The image also carries the cat's associations: independence, stealth, and unhurried purpose.
Q2. What type of poetic device is used here? How is it different from a simile?(3 marks)
This is an implied metaphor (also called a direct or compressed metaphor). A simile would say 'the fog comes like a cat on little feet' — using 'like' or 'as' to make the comparison explicit. Here, Sandburg simply describes the fog in cat terms without announcing the comparison. This is more powerful because the two things are fused rather than merely placed side by side. The reader experiences the fog as a cat, not just as something resembling one.
Extract 2
It sits looking / over harbor and city / on silent haunches / and then moves on.
Q1. What picture does this stanza create? What does 'silent haunches' suggest?(3 marks)
The stanza creates a picture of the fog settled over the city — still, watchful, resting like a cat crouched on its haunches. 'Silent haunches' is a precise physical image: haunches are the rear quarters of an animal when it is crouching or sitting. The word 'silent' reinforces the fog's noiseless quality. The fog is not just covering the city; it is pausing over it, looking — and then choosing to move on. The image gives the fog a quiet, deliberate presence.
Q2. What does 'and then moves on' suggest about the nature of the fog? What deeper meaning might this have?(3 marks)
'And then moves on' captures the transient nature of fog — it does not stay permanently. Like a cat, it arrives on its own terms and leaves when it chooses. At a deeper level, this can be read as a comment on transience itself: many things in life — moods, troubles, moments of beauty — arrive quietly and leave just as quietly. The poem's ending is not dramatic; the fog simply goes, which is perhaps the most truthful way to describe how things pass.
Short Answer Questions
3 marks each · answer in 40–50 words
Q1. What is the central image of the poem 'Fog'? How does Sandburg develop it?
The central image is of fog described entirely in terms of a cat. Sandburg develops it by giving the fog a cat's physical qualities — 'little cat feet', 'silent haunches' — and a cat's behaviour: it comes quietly, sits and looks, then moves on. He never uses a simile ('like a cat') but fuses fog and cat into a single image, making the fog tangible and purposeful rather than a passive weather event.
Q2. Why is 'Fog' considered an imagist poem?
Imagism is a style of poetry that presents a single, precise image without explanation or moralising, trusting the image to carry all the meaning. 'Fog' is imagist because it is only six lines, uses no rhyme or regular metre, makes no moral statement, and does nothing but present one clear image — fog moving like a cat. The poem shows rather than tells, which is the essence of imagism.
Q3. What does the poem suggest about the way nature moves?
The poem suggests that nature's movements — at least the fog's — are silent, unhurried, and self-contained. The fog does not announce itself or stay permanently. It comes on 'little cat feet', pauses, and moves on. This presents nature as having its own quiet purpose and rhythm, indifferent to human activity. The harbour and city are observed by the fog, not the other way around — nature watches us, briefly, and then continues on its way.
Long Answer Question
6 marks · answer in 100–120 words
Q1. How does Carl Sandburg use the comparison with a cat to describe fog? What does this reveal about the power of metaphor in poetry?
Award 2 marks for explaining the cat metaphor clearly, 2 marks for analysing specific images (feet, haunches, moves on), 2 marks for the broader point about what metaphor achieves. Expect 100–120 words.
The cat as the perfect vehicle for fog
Sandburg chooses a cat because the qualities of a cat — silent movement, self-contained presence, the ability to appear and disappear without fuss — perfectly match the qualities of fog. Fog comes without warning, covers things quietly, and lifts without drama. A cat does the same. The two things share enough qualities that the metaphor feels inevitable once you see it.
Specific images doing specific work
'Little cat feet' gives the fog softness and smallness — fog does not crash in, it pads in. 'Silent haunches' gives it a body and a posture — crouched, watchful, temporary. 'Moves on' gives it the cat's famous independence. Each image does a precise job: it makes the fog physical, sensory, and purposeful.
What metaphor achieves that description cannot
Sandburg could have described the fog scientifically: water vapour collecting over the harbour, reducing visibility. Instead, the metaphor makes the fog alive, deliberate, and even slightly mysterious. This is what metaphor does in poetry — it transfers not just a quality but an entire feeling from one thing to another. After reading 'Fog', you do not just understand what fog looks like; you experience it differently.