Othello : "Put out the light, and then put out the light: / If I quench thee, thou flaming minister, / I can again thy former light restore, / Should I repent me: but once put out thy light, / Thou cunning'st pattern of excelling nature, / I know not where is that Promethean heat / That can thy light relume."
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Metaphor
Desdemona is metaphorically described as a source of light, symbolizing purity and life. Othello’s inability to relight her "Promethean heat" underscores the finality and gravity of his decision.
Mythological Allusion
The reference to "Promethean heat" alludes to Prometheus, who brought fire to humanity. This highlights the divine and irreplaceable nature of Desdemona’s life and love, adding a tragic grandeur to Othello’s realization of the irreversible act he is about to commit.
Syntax and Tone
The careful, contemplative syntax reflects Othello’s inner turmoil and the solemnity of the moment. The use of elevated language contrasts with the violence of his actions, deepening the tragedy of his misguided sense of justice.