In this play, the main plot device that the story turns on is that Amanda and Elyot, who have been divorced for years, meet by chance and fall in love again. The main reason their emotions are reignited is their passionate chemistry for each other. Being a play set in the early 20th century, this physical electricity is not portrayed with explicit sexual content, but with words and gestures. They're sensing a mutual attraction rekindling between them and Elyot says, when Amanda mentions his seeing the Taj Mahal in the moonlight during his travels, that "moonlight is cruelly deceptive" as he gazes at her face. Elyot describes how Amanda's beauty attracts him as much as ever:
"You're looking very lovely in this infernal moonlight, Amanda. Your skin is clear and cool. And your eyes are shining and you're growing lovelier and lovelier every second as I look at you. You don't hold any mystery for me darling; do you mind? There isn't a particle of you that I don't know, remember—and want."
It is clear that the sense of sight is crucial in helping the audience realize the strong mutual attraction between these lovers. But what they observe with their eyes (the moonlight plays up Amanda's beauty in Elyot's eyes) is communicated in words that refer to the sensation of touch, like "clear and cool" as he imagines touching her skin as he once did. He is describing their intimacy and reminding her of how well he knows every "particle" of her.