A Valediction: Forbidding Mourning

Part I of Essay
It was really a difficult poem to me. 'Cause the poem has used many metaphorical conceits. The meaning is not so apparent. I have had problems to figure out the clear and correct ideas, also I had some doubts and questions. Actually the main idea of this poem is trying to ....

Part II of Essay
.... but contains a deep meaning. The earthquake causes damage and people regard it serious. The movement of the heavenly spheres is far greater, fiercer, 'cause it is harmless, people consider it innocent. I think (I do not know if I was right?) the author intended to indicate that death is just like the earthquake-brings harms and sorrow. Earthquake is not so common, when it happens, people are scared of it. On the other hand, when facing the death, human always feel nervous and sad, all they think is the miserable separation, seldom of them thin ....