Do not go gentle into that good night,
Old age should burn and rave at close of day;
Rage, rage against the dying of the light.

These lines open Dylan Thomas’s villanelle “Do not go gentle into that good night,” written in the late 1940s as his father, David John Thomas, was losing his sight and health. The poem is often read as Thomas’s urgent address to his father, urging him to resist death with defiance rather than quiet acceptance. Although composed earlier, it was first published in 1951 and soon became one of Thomas’s most famous poems, frequently quoted in contexts of mortality, aging, and the desire to meet death actively rather than passively.

The speaker frames death as “that good night,” a euphemism that acknowledges its inevitability while refusing surrender. “Old age should burn and rave” insists that even at life’s end a person ought to remain intensely alive—fighting for meaning, dignity, or unfinished purpose. The repeated imperative “Rage, rage” is less a literal call to violence than a demand for spiritual and emotional resistance: to keep consciousness, love, and will engaged as the “light” (life) fades. The poem’s strict villanelle form amplifies this insistence, turning the refrain into a relentless act of refusal.