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Poetic Device · Reference

Analogy

A move poets keep coming back to.

What is an analogy in poetry? Simply put, an analogy is a comparison that helps clarify something unfamiliar or abstract by relating it to something familiar and concrete. A poet essentially says: this thing you find confusing is similar to this other thing you already understand. The comparison goes beyond mere decoration — it serves a purpose in explaining.

Definition

This is what distinguishes analogy from a quick simile or metaphor. A simile might say, "my love is like a red, red rose," then quickly move on. In contrast, an analogy delves into the comparison, illustrating how the two elements relate, sometimes stretching across multiple lines or even an entire poem. The reasoning behind the similarity is what matters.

Poets often resort to analogy when they want readers to feel the truth of an experience, rather than just grasp it intellectually. For example, if you want to convey grief, you could define it — or you could describe it as a tide that unexpectedly pulls away, leaving the ground shaky beneath you. The latter version resonates in the body, not just in the mind.

Analogy also empowers poets to argue a point. When John Donne likens two lovers' souls to the legs of a compass, he’s not just being witty — he’s asserting that separation doesn’t equate to disconnection. The extended reasoning behind the comparison forms the core of the poem's persuasive argument.

Look for analogies whenever a poem takes its time to clarify why two things are similar or when a single comparison evolves over several lines. That ongoing, thoughtful quality is the hallmark of analogy in action.

Examples of Analogy in poetry

From the corpus · I to IX.
  1. I.from the corpus

    If they be two, they are two so As stiff twin compasses are two; Thy soul, the fix'd foot, makes no show To move, but doth, if th' other do.

    Why this works

    Donne uses the mechanical instrument of a draughtsman's compass as a sustained analogy to clarify the abstract idea of two souls remaining connected across physical separation: the "fix'd foot" anchored at the center makes the invisible bond of spiritual fidelity tangible and geometrically precise, explaining how the union works rather than merely asserting that it does.

    from A Valediction: Forbidding Mourning by John Donne
  2. II.from the corpus

    Hope is the thing with feathers That perches in the soul, And sings the tune without the words, And never stops at all,

    Why this works

    Dickinson opens with a direct analogy that maps the abstract concept of hope onto the concrete, familiar image of a bird — an entity with feathers that perches and sings — making hope's persistent, intangible nature immediately graspable through the bird's observable behavior of never stopping its song.

    from Hope is the Thing with Feathers by Emily Dickinson
  3. III.from the corpus

    The brain is deeper than the sea, For, hold them, blue to blue, The one the other will absorb, As sponges, buckets do.

    Why this works

    Dickinson uses the familiar, physical action of a sponge absorbing a bucket of water to clarify the abstract claim that the brain exceeds the sea in depth — the word "For" announces the analogy's explanatory purpose, making the comparison explicitly a reason rather than mere decoration.

    from The Brain is Wider than the Sky by Emily Dickinson
  4. IV.from the corpus

    And life is too much like a pathless wood Where your face burns and tickles with the cobwebs Broken across it, and one eye is weeping From a twig's having lashed across it open.

    Why this works

    Frost uses this analogy to make the abstract experience of existential weariness — feeling overwhelmed, disoriented, and stung by life — tangible by mapping it onto the concrete, physical sensation of stumbling through an overgrown wood; the specific sensory details (cobwebs on the face, a twig lashing the eye) do explanatory work, translating an interior emotional state into something the reader can immediately feel.

    from Birches by Robert Frost
  5. V.from the corpus

    A noiseless patient spider, I mark'd where on a little promontory it stood isolated, Mark'd how to explore the vacant vast surrounding, It launch'd forth filament, filament, filament, out of itself,

    Why this works

    Whitman opens with a detailed, concrete portrait of the spider casting its threads into empty space, which functions as the "familiar" half of the analogy — a graspable physical image that the second stanza then maps directly onto the abstract, unknowable work of the soul ("Ceaselessly musing, venturing, throwing, seeking the spheres to connect them"). The structural parallel between the two stanzas makes the explanatory purpose explicit: the spider's behavior is not just similar to the soul's striving, it clarifies what that striving looks and feels like.

    from A Noiseless Patient Spider by Walt Whitman
  6. VI.from the corpus

    Like unto ships far off at sea, Outward or homeward bound, are we. Before, behind, and all around, Floats and swings the horizon's bound,

    Why this works

    The pastor explicitly frames human spiritual life as analogous to ships navigating open water — "Like unto ships… are we" — and then methodically maps the unfamiliar (the soul's moral drift, its restlessness) onto the familiar nautical experience of the shifting horizon, using the comparison to clarify and instruct rather than merely decorate.

    from The Building of the Ship by Henry Wadsworth Longfellow
  7. VII.from the corpus

    The fountains mingle with the river And the rivers with the Ocean, The winds of Heaven mix for ever With a sweet emotion;

    Why this works

    Shelley uses the observable, natural merging of fountains, rivers, and oceans as an analogy to make the abstract desire for human union feel logical and inevitable — the familiar physics of water converging serves as concrete evidence for an emotional argument the speaker is building toward the final plea, "Why not I with thine?"

    from Love's Philosophy by Percy Bysshe Shelley
  8. VIII.from the corpus

    But life in him Could scarce be said to nourish, only touch'd On such a time as goes before the leaf, When all the wood stands in a mist of green,

    Why this works

    Tennyson uses the analogy of a forest in its earliest, unfinished pre-spring greening to clarify the abstract idea of a life (Edmund's) that never fully developed — the unfamiliar (a talent cut short before fruition) is made legible through the familiar image of a woodland caught in that tentative, incomplete moment "before the leaf," where potential exists but nothing is yet "perfect."

    from The Brook by Alfred, Lord Tennyson
  9. IX.from the corpus

    I Like to see it lap the miles, And lick the valleys up, And stop to feed itself at tanks;

    Why this works

    Dickinson builds an extended analogy between a steam locomotive and a horse (or large animal) by mapping unfamiliar mechanical behaviors onto familiar animal ones: "lap," "lick," and "feed" transform the train's motion and water-stop refueling into the instinctive actions of a creature, making the abstract power of industrial machinery graspable through the concrete image of an animal feeding and drinking.

    from I like to see it lap the Miles by Emily Dickinson

Reader’s guide

How to spot analogy

Analogy in a poem reveals itself through ongoing comparison instead of just a brief moment of similarity. Here’s what to look for:

  1. A comparison that continues. If a simile or metaphor is introduced and then expanded over two or more lines — with additional details that relate to the original subject — you’re likely encountering an analogy.
  2. Logical connection. Consider whether the poem explains how two things are similar, rather than just stating that they are similar. Analogy addresses the "how" aspect.
  3. A tangible vehicle explaining an abstract tenor. Analogy typically moves from something concrete (like a compass, a bird, or a fishing line) to something abstract (such as love, hope, or desire).
  4. Structural importance. Occasionally, the analogy shapes the entire poem. If you can sum up the poem as "X works like Y, and here’s why," the analogy plays a crucial role.
  5. Reasoning language close by. Terms like "so," "thus," "as," "just as," or "like" followed by further explanation indicate that the poet is constructing a logical argument through comparison, rather than merely creating a vivid image.

Writer’s guide

How to write with analogy

Writing a strong analogy involves fully committing to the comparison and exploring what it can reveal. Here are three practical steps:

  1. Choose a vehicle with multiple working parts. Select a concrete object that has several distinct features, and then relate each feature to your abstract subject. For instance: Jealousy works like a splinter — small enough to ignore at first, invisible to anyone watching, but digging deeper the more you press on it.
  1. Let the comparison do argumentative work. Don’t just state that two things are similar; use that similarity to make a point about your subject. For example: Memory is a palimpsest — you can scrape the surface clean, but the pressure of old words still shows through the newer ones.
  1. Know when to close the analogy. An analogy that lingers too long becomes ridiculous. Conclude it at the peak of clarity, before the comparison starts to falter. For example: Forgiveness is a door you open from the inside — and that’s where the similarity ends, because unlike a door, you have to keep choosing to open it.

Poems that turn on analogy

From the public-domain corpus

Adjacent in Figurative language

Open the collection →

Postscript

Frequent definitions