How does the speaker feel about giving up her life?

The speaker does not seem sad at all about giving up her life.  In fact, she seems to look on and talk about death as one might describe a lover: "He kindly stopped for [her]" in his carriage; they "drove slowly," taking their time; she's wearing a "Gossamer" gown' and he takes her to his "House that seemed / A Swelling of the Ground."  They even drive around in the carriage for a while, watching the children play, gazing at the sunset and the pretty fields.  The speaker especially references Death's "Civility," and we don't typically think of death as civil or polite; many often consider death to be quite rude, actually, coming at terrible times when people aren't ready for it.  However, Death, in this poem, is personified as a lover, someone who seems to be expected and prepared for, someone, even, who is welcomed.  The narrator seems to feel a certain sense of peace when she steps into the carriage with him, suggesting that she is neither frightened nor apprehensive about giving up her life.