Which is the refrain of "Do Not Go Gentle Into That Good Night," by Dylan Thomas?

The refrain is: "Do not go gentle into that good night. Rage, rage against the dying of the light."

Explanation:

I answered this same question on Edmentum and this was the correct answer that I got.

“Do Not Go Gentle into That Good Night” uses two refrains that recur in alternating stanzas of the poem—“Do not go gentle into that good night,” and “Rage, rage against the dying of the light.” These refrains reflect the speaker’s desperate plea to his father to not give in easily, or passively, to death. Though the speaker accepts that death is inevitable, he doesn’t think that his father should succumb to it without a fight. As the poem progresses, the refrains gain momentum in expressing this insistence. In the poem’s rhyme scheme, every first and third line of the tercets rhymes with night or light, the last words of the two refrains and metaphors for death and life. Therefore, when the refrains both appear in the final quatrain, they directly echo the rhyme scheme, which repeats the night/light rhyme of each tercet. Also, in the middle tercets, each of the four kinds of men are said to follow the injunction of one or the other of the refrains. By repeating them in the final stanza, the poem intensifies the insistence in the poem that the rhyme scheme and the refrains convey. The last use of the refrains also follows the speaker's most intense plea to his father to "Curse, bless, me now with your fierce tears," which the refrains reinforce even more adamantly.

Explanation:

edmentum/plato