Life in China: A Picture a Day 2016, Feb 3 -There is a Chinese idiom 红红火火 hóng hóng huǒ huǒ , literally “red red, fire fire.”
As you know by now, red is a very lucky, or auspicious color in China, and fire is considered to be very energetic. When you tell a person or business “hóng hóng huǒ huǒ”, it’s the equivalent of telling them “good luck.” During Chinese New Year, strings of chili peppers are used to represent this idiom.
