The Flea sounds to me like a man trying to seduce his lover, or someone he would like to be his lover. It seems that the speaker is showing a flea to this woman and describing it to her. I was a little unclear on the word ‘maidenhead’, so I looked it up. Maidenhead, it turns out, is an archaic word for hymen. So, the woman he is trying to seduce is a virgin. It appears that she wants to keep it that way, for it seems that he has been trying to seduce her for quite a while. He says, effectively, that the flea gets to enjoy her blood inside it before he even woos her and that he (the flea) swells with her blood inside him. This poem is made up of very sexual images. Sorry to state the obvious. All in all, this man is trying to bang a virgin. But, they’re not married. She doesn’t want to because of the shame she’ll feel, the sin that will be committed, how her parents will react, etc. He is using a flea as a metaphor of the two lovers consummating their relationship. He tries to get her to believe that with him it will cause no shame, no sin, nor loss of maidenhead.
Imagery Digging S. Heaney The imagery in this poem is very definite and refreshing. It makes me feel like I'm watching his father dig with him.
Clean rasping sound Course boot nestled on the lug, the shaft the inside knee was levered firmly buried the bright edge loving their cool hardness corked sloppily with paper cold smell of potato mould
Those are some of the things that stood out to me. There are more, but you should get the idea.