In her poem, she describes death as a bear in autumn, something bigger than herself, untamed and ferocious. In her mind's eye, death will buy her with gold coins and take her slowly and painfully "like the measle-pox." She sees death "coming like an iceberg between the shoulder blades," sneaking up and startling her from behind. Then she talks about being curious about what it will be like, wondering if it will be dark. Slowly it is as if she realizes she must not live life afraid and must grasp it and take nothing for granted. When she speaks of brotherhood and sisterhood she finds comfort in knowing she's not the only one living towards an end. She realizes that time doesn't matter any more, but what does matter is what she does, and how she lives out her life is what matters.
She sees the lives of others in field flowers, "common and singular." When she says singular I think she is talking about how people are unique and not so much part of a whole but are living their own lives according to their own standards. She goes on to say that our names are not what make us who we are, but our actions are what define us. She sees the courage in the faces around her and sees each "as precious to the earth," which I think the author is saying we all have a reason for existing. In the end of Mary Oliver's poem she talks about when the end does come she wants to have been amazed by the things she has seen and experienced.
She wants to