Answer:
"Do Not Go Gentle into That Good Night" by Dylan Thomas
Step-by-step explanation:
"Do not go gentle into that night" by "Dylan Thomas" is one of the poems which relies most heavily on a refrain to express its themes. This is one of the most famous poems which has made use of refrain in the two lines. The first instance is seen in the first line which is the title of the poem itself. The second instance is where is in the "third line of each stanza".