Analogy
Quick answer: An analogy is a comparison that explains one thing through another, point by point. Learn how to build one and how it differs from metaphor and simile.
An analogy is a comparison that explains: it sets one thing beside another so the familiar can light up the unfamiliar. Where a metaphor asserts that one thing is another, an analogy works through correspondence, often point by point, the way a teacher once compared the atom to a tiny solar system. The comparison is not just decorative; it is a piece of reasoning, claiming that because two things share a structure, understanding one helps you understand the other.
Poets reach for analogy when the subject resists direct description, grief, faith, the strangeness of memory. A sustained analogy gives the abstract thing a body the reader can walk around. John Donne built whole poems this way, most famously comparing two lovers' souls to the twin legs of a drawing compass, one fixed, one roaming, always joined. That patient, worked-out quality is what separates analogy from a quick flash of metaphor.
How It Works
An analogy maps features from a source onto a target. Consider an invented example: waiting for her letter was tuning a radio between stations, all that static, and somewhere inside it, a voice. The target is the experience of waiting; the source is the radio. The static maps onto anxious noise, the tuning onto hope and effort, the buried voice onto the possibility of an answer. Each correspondence earns its keep, and the reader can extend the mapping alone: what happens when the signal never comes?
The test of a good analogy is how far it stretches before it snaps. Two or three genuine points of contact make an analogy feel discovered; force a fourth that does not fit and the whole comparison starts to wobble.
Analogy, Metaphor and Simile
The three devices are cousins, not triplets. A simile flags its comparison with like or as and can be over in a breath. A metaphor drops the flag and asserts identity. An analogy is less about grammar than about purpose: it compares in order to explain or argue, and it usually unfolds across several correspondences rather than one. Homer's epic similes, which pause a battle to describe a lion, shepherds and a sheepfold at length, behave like analogies wearing a simile's clothing.
Using Analogy in Your Own Poems
Choose a source you know intimately, an engine, a garden, a card game, and let its real details do the explaining. Analogies fail when the poet knows the target well but the source only vaguely; the borrowed world turns generic and the reader feels it. Let the analogy run for several lines before naming what it explains, or resist naming it at all. A reader who completes the mapping personally will trust the poem more than one who is handed the answer.
What poets can take from this
- Draw your source material from something you know first-hand, so the details ring true.
- Aim for two or three genuine points of correspondence rather than one vague resemblance.
- Let the reader complete part of the mapping; do not label every parallel.
- If the analogy stops fitting, end it cleanly instead of forcing another line out of it.
- Read the analogy from the source's point of view to check it does not accidentally insult your subject.
Try it yourself
Pick an emotion you find hard to describe and explain it entirely through a mechanical process you know well: tuning an engine, kneading dough, threading a needle in poor light. Sustain the analogy for at least eight lines before you name the emotion, if you name it at all.
Questions
What is the difference between an analogy and a metaphor?
A metaphor asserts that one thing is another, often in a single phrase. An analogy compares two things in order to explain or argue, usually mapping several points of correspondence between them. Many extended metaphors function as analogies.
Is an analogy the same as a simile?
No. A simile is defined by its grammar, a comparison using like or as, while an analogy is defined by its purpose, explanation through correspondence. An analogy can contain similes, but a one-line simile is rarely a full analogy.
Can a whole poem be one analogy?
Yes, and some of the most memorable poems are exactly that. Donne's compass poem and countless contemporary pieces sustain a single comparison from first line to last, letting each stanza discover a new point of contact.
By the Writory editorial team, reviewed by working poets. Updated July 2026.
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