Do Not Go Gentle into that Good Night

In this poem, Dylan Tomas refers to death as "that good night". His poem's main theme is to fight against "that good night", to fight death until the end. He uses repetition in every stanza, ending each one with the line "do not go gentle into that good night" or "rage, rage against the dying of the light". He encourages all men to not give up easily and to gift for each moment of life that they can manage to hold on to. I think this poem might be inspired by his own father's death because in the last stanza he says, "And you, my father, there on the sad height... Do not go gentle into that good night..."  It is possible that he is encouraging others to gift against death because he wishes his father could as well. I know that if someone I knew was dying, I wod selfishly want them to hold on as long as they could, to go down with a fight, so that I could spend as much time with them possie. Maybe Thomas feeled this same way, wishing to hold on to someone close to him.