Virgil draws attention to his role as poet in his comment on Nisus and Euryalus
'fortune has favoured you both! if there is any power in my poetry, the day will never come when time will erase you from the memory of man...' (bk 9)
on several occasions, he shares with his reader, info that points out irony or builds up tension
he tells us of Turnus taking Pallas' sword-belt in bk 10
when Turnus is failing, and Virgil wants his readers to feel the despair of the young warrior, he uses the first person (bk 12)
sometimes the intervention is by way of a general aside: 'priests as we know, are ignorant' (bk 4) or 'Who can deceive a lover?' (bk 4) he asks in relation to Dido