Tara, probably will use emotion as strategic rhetoric. This is because the history of immigrants is usually made up of difficulties and victories that they have spent in search of better living conditions in a country unknown to them.
By using this feature, Tara seeks to target common feeling, shared cultural values, or be structured to manipulate and elicit a direct emotional response, making the listener identify with the story of her parents.
The purpose and effect of Beowulf describing his own great deeds rely on showing how confident he is about his strength and bravery to fight the monster. In this way, he is demonstrating his honor and fearless pursues to others.