William Blake "The Sick Rose"

While the rose exists as a beautiful natural object that has become infected by a worm, it also exists as a literary rose, the conventional symbol of love. The image of the worm resonates with the Biblical serpent and also suggests a phallus. Worms are quintessentially earthbound, and symbolize death and decay. The "bed" into which the worm creeps denotes both the natural flowerbed and also the lovers' bed. The rose is sick, and the poem implies that love is sick as well. Yet the rose is unaware of its sickness. Of course, an actual rose could not know anything about its own condition, and so the emphasis falls on the allegorical suggestion that it is love that does not recognize its own ailing state. This results partly from the insidious secrecy with which the "worm" performs its work of corruption—not only is it invisible, it enters the bed at night.