Show how "The Flea" is a metaphysical poem by John Donne?

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karaejacobi eNotes educator| Certified Educator

Metaphysical poetry is characterized by its conceits, extended metaphors that often compare two very unlike things (they are stranger or more unusual than metaphors typically are), and by its argument-like structure. Even though a central conceit may introduce a strange comparison, the poet attempts to use logic to explain or illustrate his ideas. This is definitely the case in John Donne's "The Flea." 

In "The Flea," Donne's speaker tries to persuade a woman to sleep with him before they are married. This would've been riskier for her than for him, since a woman's reputation would be ruined if she had premarital relations. The conceit Donne uses to develop his argument compares a flea to the lovers' potential union. The metaphor, which is extended over the entire poem, compares something romantic (their union) to something decidedly unromantic, and even disgusting (the flea).

At the start of the poem, the speaker tells the woman to look at the flea and imagine that the two of them are joined inside the body of the flea; since the flea has bitten each of them, their bloods mingle in the flea and connect them in a way similar to the romantic union the speaker is pursuing. Donne even goes so far as to suggest that they are married inside of the flea, and that their union has been made sacred in the metaphorical "marriage temple." The speaker uses the conceit to try to convince the woman that the act of sleeping with him will be as minor and blameless as the flea's act of biting both of them and feasting on blood from both of them ("Thou know’st that this cannot be said / A sin, nor shame, nor loss of maidenhead").

The woman later kills the flea, but the speaker is able to turn that to his advantage, as well. The woman "triumph'st" and brags to the speaker that killing the flea did not cause any harm to either of them (the speaker had previously said that killing the flea would be "sacrilege," as she'd be killing the flea and their sacred union at the same time). The speaker ends the poem by saying that in the same way killing the flea did not take her life, sleeping with him will not take her honor. So, in the speaker's mind, his argument has reached its logical conclusion, and since he used an odd conceit to illustrate his argument, "The Flea" is a great example of a metaphysical poem. 

rbeverett eNotes educator| Certified Educator

Metaphysical poetry involves the elevation of a seemingly common item or action to an almost spiritual level of importance, and John Donne’s “The Flea” illustrates this definition perfectly.


In the poem, the speaker equates the “two bloods mingled” within the body of a flea with the marriage of a man and his wife. Thus, the speaker argues to his lover that they, from a certain perspective, are “one blood made of two.” From the speaker’s perspective, the engorged flea is elevated from a pest to a “marriage bed” and “marriage temple.” The speaker seemingly transfers the sacred characteristics, meanings, and implications of marriage to a common flea.


However, the speaker does not stop with this argument. To reinforce his point, the speaker also warns his lover to not kill the flea because to do so would be “self murder.” By killing the flea, one would be destroying a part of the speaker and his lover as well as their “union.”  Thus, the value of the flea is elevated to that of a human life as well.

kc4u | Student


The entire poem is driven by one comprehensive 'metaphysical conceit' and that is organized around this tiny and trifling object of the insect. It bites both the beloved and the lover and just because in its body, the blood of the two unite, the failed lover tries to convince his unwilling and indifferent beloved that the body of the flea is like their marriage bed where the love is already consummated.

Under the circumstances rather than killing the little flea and doing a crime, it is better for her to respect its unifying function and accept him as her lover.

Apart from the far-fethed and conceitful use of the flea symbolism, all its effects like---the tone of ironic wit, a satirical undercutting of romantic love, the argumentative structure of the poem, the combination of levity and seriousness--all these things make Donne's The Flea, a remarkable and representative Metaphysical poem.

Read the study guide:
John Donne's Songs and Sonnets

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