The red sunlight symbolizes the mass amounts of blood spilled during the war. It is not clear what war Poe is referring too, however at the time of the writing of this poem both the war of 1812 and the wars of Spanish American independence were under way.
Photography of nature that reminds us to keep it simple. Nature is amazing at reminding of how life moves effortlessly. More on our stories of the lessons we observed by embedding ourselves in nature will soon land.