This document summarizes John Donne's metaphysical poem "The Flea" and provides context about metaphysical poetry and Donne's life and works. It discusses how Donne uses the metaphor of a flea biting two lovers to represent their mingling blood as a metaphor for sex. The poem sees the speaker try to convince his lover to be intimate by arguing their mingling in the flea is innocent, so intimacy would be too. It explains how Donne hints at sexuality through images while avoiding explicit references. The document provides background on Donne as a pioneer of metaphysical poetry, known for its intellectualism, strange imaginings, and paradoxes. It concludes by thanking the reader.