Final answer:
Yes, 'dying light' in the poem is a metaphor for death, symbolizing the fight against the inevitable approach of death.
Step-by-step explanation:
True, in "Do Not Go Gentle Into That Good Night," the words "dying light" serve as a metaphor for death. The poem, written by Dylan Thomas, employs this metaphor throughout as a way of describing the inevitable approach of death, urging the poem's subjects to fight against it and not succumb meekly to its approach. The repeated use of the contrasting images of light and dark symbolizes life and death, with the dying of the light representing the end of life and the transition to death.