The lighting of a wedding candle set is a relatively recent addition to the traditional wedding ceremony, most popular in the World. The unity candle ceremony uses two taper candles with a large pillar candle (called the “unity candle”) in the center. At the beginning of the wedding ceremony, a representative from each family (usually the mothers of the bride and groom) light the two taper candles. Later in the ceremony (usually after the formal vows), the bride and groom use the two taper candles to light the large pillar (unity) candle together.

Often a unity candle is decorated with the wedding invitation, an inscription, a picture of the couple, or other ornamentation. The candles are almost always white. The lighting ceremony may be accompanied by special music, an explanation of the symbolism, or just some period of mutual gazing by the happy couple. In some circles, it is customary for the couple to save the unity candle and relight it on anniversaries.