How are the speakers sense of goals different in because i could not stop for death and some keep the sabbath going to church?

It seems that you have missed the necessary options for us to answer this question, so I had to look for it. Anyway, here is the answer. How the speakers' sense of goals different in "Because I Could Not Stop for Death" and "Some Keep the Sabbath Going to Church" is that the speaker in the former knows exactly what her goal is, while the speaker in the latter believes that she has already achieved it. Hope this helps.