The purpose of an allegory is to teach an idea or principle, or to explain an idea or principle. It is the extension of a metaphor throughout the text that epitomizes an allegory.
Allegorical literature has experienced popularity over many centuries. Some of the most prominent pieces of allegorical literature include:
Pilgrim’s Progress is likely the most famous piece of allegorical English literature. Written by a preacher intending to spread the word of Protestant doctrine, particularly the concept of what is necessary in order to achieve salvation, there are myriad representations of individuals and actions in the book. Exploring this work highlights and clarifies the elements of allegory.
Also in Pilgrim’s Progress, the ferocity that Bunyan feels in relation to the strictness of the religion is made clear.
In relation to this point, Johnston states in his lecture that, “…people are to be instantly summed up and, if they fail the basic test of the disciplined spirit, they are to be dismissed as fools, threats, hell-bound sinners. In Pilgrim's Progress the emphasis is overwhelmingly on the individual's spiritual journey as the only thing that matters: charity towards one's neighbour has been almost entirely replaced by introspection and self-imposed spiritual flagellation.”
Bunyan’s treatment of the characters in the text is used to metaphorically convey his opinion regarding those who are “sinners” or “fools” and to impress the importance of that viewpoint on the reader.
The text also metaphorically shares the concept that while many may get close to salvation few will actually achieve it. This concept is portrayed in the story with the appearance of characters such as “Ignorance” arriving “at the Celestial City” but never able to get in.
Throughout Pilgrim’s Progress each element, from people, to nature, to material goods are representative of other forces and of concepts related to them. Pilgrim’s Progress is a fictional work that epitomizes the allegory and stands as a strong example of metaphorical writing.
Moby Dick uses allegory on many different levels. For instance:
These are just some of the ways in which this work may be seen as an allegory. Different readers over time have read different meanings into the book, which shows the level of depth that Melville managed to include in his work.
Animal Farm is an allegory that uses animals on a farm to represent the overthrow of Tsar Nicolas II, the actions of Stalin and the revolution in Russia before World War II. The struggles of the animals on the farm may be seen as a metaphor for:
Many literary critics and historians have also directly linked each of the characters within the book to the central players in the Russian revolution. For instance, Mr. Jones represents the last Russian Tsar. Further, the doctrine of "animalism" in the book represents real life communism, allowing Orwell to make clear his position on the political situation in Russia through the use of metaphor and allegory alone.