<span>The change in an object's position is the definition for displacement</span>
In my opinion, the whole poem is quite ironic - although she is mentioning the exultation and the royal color of death, the poem itself begins with the narrator saying that she cannot breathe - that she doesn't want to die.
So, I would say that the ironic parts are:
Exultation is the going
Of an inland soul to sea, -
Past the houses, past the headlands,
Into deep eternity!
<span>Cry loudly, lift shrill voices like magicians</span>
So the question is asking how the person thats telling the story use the story to explain facts about the natural world or specific Cherokee traditions. its sort like using the creation of the story as an example