In this poem Emily Dickinson has created a metaphor poem. She is comparing two things. Please explain the two things that she is comparing. Ise examples from the text to explain your meaning

Commercial agriculture consists of raising food for trade and profit, while subsistence agriculture focuses on -- a. providing the basic needs of the farmer's family b. providing the basic needs of the neighboring communities c. creating more arable land for future use d. obtaining subsidies from governments and corporations