Final answer:
In 'Crossing the Bar,' sunset symbolizes the end of life, while the evening star represents hope and guidance into the afterlife, reflecting a peaceful acceptance of death.
Step-by-step explanation:
In the poem "Crossing the Bar" by Alfred, Lord Tennyson, sunset and evening star symbolize the close of life and the transition to the afterlife, respectively. The sunset represents the end of the day just as it indicates the end of life's journey. In contrast, the evening star, often seen as a bright, guiding light that appears in the twilight sky, symbolizes the hope of a guiding light that will lead the soul to the afterlife. Tennyson's use of these symbols encourages a peaceful reflection on death, suggesting that just as the sun sets calmly and predictably, so too should one approach the end of life with tranquil acceptance.