Allegory has not been considered a core content in both poetics and poetry education, even though it can be found everywhere where literature is read and taught. I assume the reason why it has been excluded is because allegory has been subordinate to symbol in the history of rhetoric for a long time. The terminology is also a problem. An allegory by definition is a story, poem, or painting in which the characters and events are symbols of something else. Allegories are often moral, religious, or political. I focused on the aspect that allegories have two different stories. One is told in the text, and the other is implied by the context in which the poem had been produced. I argued that the poem, ``the Ocean and a butterfly(Badawa Nabi)`` should be taught as the sample of an allegory. The poem has two different stories; a story in the text, and another story by the context, which is the condition of 1930`s when the poet lived his life. We have to consider the context of allegories not just extrinsic information but one main component of the structure of the poem.