How do I read the color of a spark plug? Look at the firing tip of your spark plug while paying close attention to the condition and color of the ceramic insulator and the metal electrode. Observe the color first. Light tan or gray deposits are normal, and an indication that everything is working well.
Definition of candle. 1  1 : a usually molded or dipped mass of wax or tallow containing a wick that may be burned (as to give light, heat, or scent or for celebration or votive purposes) 2  2 : something resembling a candle in shape or use a sulfur candle for fumigating.
Many Christians light candles as an aid to prayer. In Roman Catholic and some Anglican churches, Christians place a lighted candle by a statue of Jesus, Mary or one of the saints. The candles are called votive candles. They are symbols of the prayers the worshipper is offering for him or herself, or for other people.