What does the phrase " Fields of Gazing Grain"symbolize?

Reading Comprehension: Read the quoted parts carefully and answer the questions in English.We passed the School, where Children strove 
At Recess-in the Ring-We passed the Fields of Gazing grainWe passed the Setting Sun-(From Emily Dickinson's poem Because I could not stop for Death)
What does the phrase " Fields of Gazing Grain"symbolize?
【正确答案】：

IT SYMBOLIZES THE MATURE PERIOD.

【题目解析】：引文中的“凝视的麦田”象征着成熟时期。