One of the forms of analysis and criticism that is best used with many works is the analysis of archetypal images. Many words and objects are images that have much deeper meanings and values than you, as a reader, take at face value. Many of the words and sentences in Dylan Thomas" "Do Not Go Gentle Into That Good Night" give away the poems underlying theme of darkness and death. .
One of the archetypal images Thomas uses is that of the wise old man. "Though wise men at their end know dark is right, because their words forked no lighting they do not go gentle into that good night." This passage speaks of wise men that fail. The archetypal definition of the wise man is one who possesses the qualities of insight, wisdom, cleverness, a spiritual principle, and much more. But aside from the fact that these men are wise, their words still mean nothing. This passage gives the reader an unmistakable image of darkness in the lives of even those who are wise. .
A second image that portrays this theme is the fourth stanza of the poem. "Wild men who caught and sang the sun in flight, and learn, too late, they grieved it on its way, do not go gentle into that good night." Here the image of the sun represents the passing of life. And the men, who were too late in catching the sun and grieved it on its way, are giving us the image that the sun is setting. Or, as it could be interpreted, the sun for that day is dying. Here again we have a passage that is giving us a clear image of darkness. And here, also, we see Thomas referring to death. .
One of the strongest, if not the strongest, images of darkness and death is shown in the last two lines of the poem. "Do not go gentle into that good night. Rage, rage against the dying of the light." The death of the light here shows us blackness: the ultimate darkness. This one line brings to light all of the darkness, death, and evil that is in this poem.
