The introductory stanza says that old age should do something against the other things and should not give up and do nothing. In stanza 2 to 5 the author lists a few groups of people: wise men, good men, wild men and grave men and describes their actions with a few metaphors. In the last stanza Dylan Thomas speaks to his father. Wise, good, wild and grave men (of all personalities and every persuasion) do not surrender to Death easily. While Death is "good" and irresistible, the final spark of life in every man, must blaze both defiantly and furiously against the force that extinguishes it. The poem is an exhortation to die gloriously, resisting the inexorable advance of the inevitable.
Dylan Thomas is expressing the idea that moving toward death should not be something we do in a resigned way, but rather that we should fight it and go out in a blaze of glory. When he says, “rage, rage against the dying of the light” it is clear that the dying light is means darkness, which is a metaphor for death and that in old age, we should “burn” with life, which brings to mind images of brightness, light, and life. This almost acts as something of a thesis statement for the rest of the poem since it clearly defines and outlines the speaker’s beliefs about aging and death.
If Dylan Thomas were alive, maybe he is one of those people who strongly oppose assisted suicide and euthanasia. As