Stream of Consciousness:
Refers to an attempt on the part of an author to reproduce the unembellished flow of thoughts in the human mind with its feelings, judgments, associations, and memories.


Example:
"Well, I catched my breath and most fainted. Shut up on a wreck with such a gang as that! But it warn't no time to be sentimentering. We'd got to find a boat, now- had to have it four ourselves. So we went a-quaking and shaking down the stabboard side..."
-Adventures of Huckleberry Finn

Explanation:
Twain writes this novel using stream of consciousness. The purpose of this is to show the thoughts that go through the main character's (Huck) mind. This allows the reader to characterize and image who Huck is and how he acts.