Mark but this flea, and mark in this,
How little that which thou deny'st me is;
It sucked me first, and now sucks thee,
And in this flea our two bloods mingled be;
Thou know'st that this cannot be said

A sin, nor shame, nor loss of maidenhead;
Yet this enjoys before it woo,And pampered 
swells with one blood made of two
,And this, alas, is more than we would do.
Oh stay, three lives in one flea spare,

Where we almost, yea, more than married are.
This flea is you and I, and this
Our marriage bed, and marriage temple is;
Though parents grudge, and you, w'are met,
And cloistered in these living walls of jet.
Though use make you apt to kill me,
Let not to that, self-murder added be,
And sacrilege, three sins in killing three.
Cruel and sudden, hastthou since

Purpled thy nail in blood of innocence?
Wherein could this flea guilty be,
Except in that drop which it sucked from thee?
Yet thou triumph'st and say'st that thou


 Analysis:


The most important theme in this poem is Marriage. The speaker is trying to seduce a woman into Marrying him. Donne simply uses a Flea as to provide the reader with a sense of imagery " The Flea" is a symbol for a union. A part of the speakers strategy of seduction is to make the woman believe that marriage is just a small The Flea is also a symbol in the fact that it contains both the blood of the male and the female making their blood one as a tactic of persuasion the speaker makes this analogy synonymous with a marriage therefore, making the actual marriage ceremony seem like its not a big deal the speaker goes as far to say "We almost, yea, more than married are." The speaker blatantly tells his Love "This flea is you and I, and thisOur marriage bed, and marriage temple is;" There is a conflict between the two who wish to marry and the parents as seen by the phrase "Though parents grudge"

Resource:
http://www.eliteskills.com/c/11880