
Theresa S. answered 10/05/20
Experienced High School English teacher and ACT prep
To answer this question you need some background on this poem. It was written by Heberto Padilla, a Cuban poet and Revolutionary, who was imprisoned by Castro after speaking out against his government.
The poem is primarily about the sacrifices a country asks of its soldiers, and lists those sacrifices: time, hands, eyes...
It is also about how, after making these sacrifices, the government turns its back on the soldier (read the last 9 lines, beginning with "They told him..."
And that brings us to your question about "the great dream." Here are the lines: "They asked him for his lips, parched and split, to affirm, to belch up, with each affirmation, a dream (the great dream)."
In this poem, "the great dream" does not refer to the soldier's great dream, but to his country's great dream. That is, the reason they have sent soldiers to war.
To answer the question, ask yourself how might a person feel about the sacrifices he made to fight for a cause he may or may not believe in himself, for a country who sees him as an instrument to achieve their "great dream."