Extended metaphor

[5] The paradoxical pain and pleasure of lovesickness is often described using oxymoron, for instance uniting peace and war, burning and freezing, and so forth.

Romeo uses hackneyed Petrarchan conceits when describing his love for Rosaline as "bright smoke, cold fire, sick health".

[8] A frequently cited example is found in John Donne's "A Valediction: Forbidding Mourning", in which a couple faced with absence from each other is likened to the legs of a compass.

Poet and critic Samuel Johnson was not enamored with this conceit, critiquing its use of "dissimilar images" and the "discovery of occult resemblances in things apparently unlike".

[11] Well-known poets employing this type of conceit include John Donne, Andrew Marvell, and George Herbert.

[8] In the following passage from "The Love Song of J. Alfred Prufrock", T. S. Eliot provides an example of an extended metaphor: Qualities (grounds) that we associate with cats (vehicle), color, rubbing, muzzling, licking, slipping, leaping, curling, sleeping, are used to describe the fog (tenor).

Original printing of Sonnet 18