Do Not Go Gentle into That Good Night

"Old age sould burn adn rave at close of day,

Rage, rage againts the dying of the light."

One thing that stuck out to me most in this poem was the tone of seriousness and caution. The speaker is warning his father that death is not the option. He must fight to stay alive and to "not go gentle into that good night". This message is repeated throughout the poem, even repeating the exact same line. The speaker is also saying that "Grave men, near death, who see with blinding sight, blind eyes could blaze like meteors and be gay,", meaning that even though he is nearing the end of his life, he should not accept this as his end and do what he can to fight it and "rage against" it. In addition to this, the speaker addresses four aspects of his father: "wise men", "good men", "wild men", and "grave men". I don't exactly know what this means in relation to the tone, but it was something I noticed.