But in what follows he takes the person of Chryses, and then he does all that he can to make us believe that the speaker is not Homer, but the aged priest himself.

And in this double form he has cast the entire narrative of the events which occurred at Troy and in Ithaca and throughout the Odyssey.
Yes.
And a narrative it remains both in the speeches which the poet recites from time to time and in the intermediate passages?
Quite true.
But when the poet speaks in the person of another, may we not say that he assimilates his style to that of the person who, as he informs you, is going to speak?
Certainly.
And this assimilation of himself to another, either by the use of voice or gesture, is the imitation of the person whose character he assumes?
Of course.
Then in this case the narrative of the poet may be said to proceed by way of imitation?
Very true.
Or, if the poet everywhere appears and never conceals himself, then again the imitation is dropped, and his poetry becomes simple narration.

However, in order that I may make my meaning quite clear, and that you may no more say, I don't understand,' I will show how the change might be effected.

If Homer had said, 'The priest came, having his daughter's ransom in his hands, supplicating the Achaeans, and above all the kings;' and then if, instead of speaking in the person of Chryses, he had continued in his own person, the words would have been, not imitation, but simple narration.

The passage would have run as follows (I am no poet, and therefore I drop the metre), 'The priest came and prayed the gods on behalf of the Greeks that they might capture Troy and return safely home, but begged that they would give him back his daughter, and take the ransom which he brought, and respect the God.