The poem reflects on the poet Emily Dickinson's death notion, which is when accepting death calmly, people's spirit will get immortal. However, what's different to those poems with the theme of death composed by others in the Emily's poem is this one personalized death and immortality,especially when Dickinson compared the god of death to a gentleman,which seems very anti-tradional since people always describe the god of death as a repulsive look.
长句子用的稍微有点多,如果需要可以拆一拆,语法没错误。
希望对你有帮助。