Tiberinus, not only a god but also the god of the river the Romans depend on, manifests himself to Aeneas and aids him in completing his fate. Additionally nature literally changes it course because a river “refluens” to help Aeneas. The fact that nature does all of this to aid Aeneas speaks to the influence of his fate; which is to found Rome (or have his descendants do so). By showing this it shows the value of Rome as a city. This would most likely please a Roman reader because everyone likes to hear about how great their city is. In addition it shows a positive view of the city and people because such extreme length that nature goes to in order to help a mortal. It is clear that nature does play a role in the first hundred lines of Book
