All 3 Uses

Aeneid
in
My Antonia
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Morning after morning I used to pace up and down my sunny little room, looking off at the distant river bluffs and the roll of the blond pastures between, scanning the 'Aeneid' aloud and committing long passages to memory.†
Book 2 *
The seeds of my ardour were the sparks from that divine flame whereby more than a thousand have kindled; I speak of the "Aeneid," mother to me and nurse to me in poetry.'†
Book 3
After he had faced the bitter fact that he was to leave the 'Aeneid' unfinished, and had decreed that the great canvas, crowded with figures of gods and men, should be burned rather than survive him unperfected, then his mind must have gone back to the perfect utterance of the 'Georgics,' where the pen was fitted to the matter as the plough is to the furrow; and he must have said to himself, with the thankfulness of a good man, 'I was the first to bring the Muse into my country.'†
Book 3

Definitions:

(1) (Aeneid)
an epic in Latin by Virgil; tells the adventures of Aeneas after the Trojan War and describes him as the ancestor to the Romans; provides an illustrious historical background for the Roman Empire
(2) (meaning too rare to warrant focus)