In "this world", what technique does the poet use to emphasize the central idea?

To show the idea of wathever history or story the narrator use.

The answer is "yes, completely ".

Explanation:

Their imaginative narrative, "The World On Turtle 's Back", not only explains its earth's creation but is also regarding people's dynamic existence. Its legend says that the earth existed under a large sea-tortoise, then composed of a pregnant woman. This was full of conflicts and compelling characters in historical creation. By telling it through complex performances, the Iroquois passed this Story through one generation to the next, that's why it fulfills its functions.