Final answer:
Abraham Lincoln used his Second Inaugural Address to promote unity and healing post-Civil War, employing parallelism to enhance the speech's appeal and emphasize its central themes.
Step-by-step explanation:
In his Second Inaugural Address, President Abraham Lincoln intended to unify a nation torn by civil war. Lincoln's purpose was to foster a spirit of reconciliation and to outline his vision for the country post-conflict. The speech carried the theme of national unity and the importance of adhering to the fundamental principles of the American republic, such as the permanent nature of the Union and the centrality of majority rule. In the aftermath of severe national strain, Lincoln extended an olive branch to the South while standing firm against the division of the United States.
Furthermore, he skillfully used parallelism to enhance the rhythm and beauty of his address, which added to the speech's emotional and persuasive power. By employing parallel structures, Lincoln not only gave his address a poetic quality but also reinforced key ideas, creating memorable phrases that would resonate with listeners and later readers of his speech.