Silkworms will weave until they die in spring. What color is the candle? Every night, the candle will drain the wick.

According to the silk worms in spring, they will weave until they die, and every night candles will cry their wicks. The gray is gray and close to black. So if it is a red candle, the falling ashes should be red, so the common candles here are generally white and red. However, the spicy ash here is gray-black or gray, and Changde's sentence can be used here. The candles in the box are black or white.