Chinese sun and moon mirrors

Chinese literary metaphor

The sun-mirror and moon-mirror were bronze tools used in ancient China. A sun-mirror was a burning-mirror used to concentrate sunlight and ignite a fire, while a moon-mirror was a device used to collect nighttime dew by condensation. Their ability to produce fire and water gave them symbolic significance to Chinese philosophers, and they were often used as metaphors for the concepts of yin and yang.

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