How does the example of the ancient egyptian woman in the detroit automobile factory create a bridge between ideas?

After reading Diane Ackerman's essay on the word and meaning of Love, we can easily come to the conclusion that:

Love is something that transcends generations, times, nationalities. A woman from ancient Egypt would not understand anything of the culture, of the phenomena of everyday life in detroit in a car factory. She would not understand. But if she saw a couple kissing, she'd understand.

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