We live in a moment in the age of the universe. We humans come and go, and everything around us is usually the same. In the poem "Tide elevation, tide waterfall" by Henry Wadsworth Long Fellow, he wrote an article about the travelers who came to the coast, the tide slowly washed away footprints. This poem seems to be a simple work about a man on vacation, but in fact it has a deeper meaning and conveys more information. The poem began at the end of the sunset day, "travelers hurried to the town."
A big change in the rise of the tide, the tide waterfall was written by Long Fellow. And he continued to climb down in the morning "But never let the traveler go back to the shore." This indicates that life will continue even if travelers are no longer alive. This also means "nature is indifferent to fate". The sun is still rising and the trend is still coming in and out (Overview: "Tide of the tide, the tide of the tide"). After analyzing the poem, the title tells the whole atmosphere of poetry. And it is melancholy and quiet. The line which is repeated in this poem "the tide rises, the tide" is where Longfellow embeds his subject and suggests that time and nature will continue to exist after death. Death is part of this cycle, but Longfellow comments on life and how it goes. "The tide rises, the tide waterfall" is related to the progress of time and death
People living along the sea are accustomed to rising and falling daily tides. In the early years of history it was clear that the tide had to be relevant to the moon, as the daily delay of the high tide was the same as the daily lag of the rising of the moon. But a satisfactory explanation for the tide is waiting for the gravity theory provided by Newton. The gravity that the moon exerts at several points on the earth is shown in Figure 1. These forces are slightly different from each other because the earth is not a point, but it has a certain size: all parts are not equal to the moon, and they are not exactly the same direction as the moon. Furthermore, the earth is not completely rigid. As a result, the earth is slightly warped by the difference in attraction of the moon (called differential dynamics) at various places on the earth.