Here's a breakdown:
* Huck's journey: Huck's escape from his abusive father and subsequent journey with Jim, a runaway slave, represents a rebellion against the oppressive and morally corrupt society of the antebellum South.
* Jim's escape: Jim's quest for freedom is an allegory for the struggles of African Americans in the face of slavery. His humanity and intelligence are constantly challenged by a society that dehumanizes him.
* The Mississippi River: The river symbolizes freedom, adventure, and the escape from societal constraints. It's a space where Huck and Jim are free to be themselves and forge their own path.
* The Feud between the Grangerfords and Shepherdsons: This conflict represents the pointless violence and hatred ingrained in Southern society.
* The Duke and Dauphin: These con men represent the hypocrisy and corruption of the "civilized" world. They exploit others' vulnerabilities and manipulate them for their own gain.
The overall allegory: The novel can be seen as a critique of racism, hypocrisy, and the corrupting influence of society. Huck's moral evolution, as he challenges his own prejudices and chooses to help Jim despite the law, offers a hopeful vision of individual conscience and human connection transcending social norms.
It's important to note: There are other possible interpretations of the allegory, as Mark Twain's writing is open to various readings. This is just one possible interpretation, highlighting the main themes and symbols present in the novel.