I believe the poet you're mentioning here is "William Cullen Bryant."
Answer:
The poet answers the fear shared by many facing death by telling them that death is a comforting and natural process of life and that people should not worry about it. He also added that when people die, they become part of nature.
Explanation:
William Cullen Bryant (19th century) is a romantic poet and journalist. He is popular for his poem called "Thanatopsis." The title of the poem comes from a Greek word which means "contemplation." It is a sad poem regarding the death of people and William tries to console people by telling them that death is a natural thing that everyone experiences. He also added that people do not die alone and when they die they become part of nature. The human's body is needed in order to nurture the earth.
He also regarded humans as the "finest people" on earth. This means that when a person dies, he becomes one of the finest person on earth because he has contributed to its history.