"Do Not Go Gentle into That Good Night" is a villanelle written by Dylan Thomas, expressing the struggle against death. The poem emphasizes the importance of fighting against the inevitability of dying, urging individuals to resist passively accepting their fate. The repeated lines, "Do not go gentle into that good night" and "Rage, rage against the dying of the light," highlight the emotional intensity of the speaker's plea. The poem reflects on different types of men—wise, good, wild, and grave—who all confront death in their own ways, ultimately advocating for a fierce resistance to the end of life.