So in this paragraph, <u>"morning star" is a metaphor for hope</u>.
As we can see in the poem, the first line <em>The light which puts out our eyes is darkness to us</em> is symbolic of good and evil. The light represents the hope, the good; and the darkness represents the bad, suffering. Also, the line <em>There is more day to dawn</em> also represents the triumph of light over dark, the good over the bad, the hope over dispair. Therefore, given that symbolism, we can conclude that <u><em>the sun is but a morning star</em></u><u> means that the sun is the hope that each new day brings</u>.
It has decreased because over time because water creates caverns and also polution can kill alge in the water witch can cause the water flow to decrease in folucules.
