A candle with a flame, as tombstone art, symbolizes life, eternal life, and light. A burning candle brings light to darkness.

Burning candles, Willshire Cemetery
Jesus said, I am the light of the world. Whoever follows me will not walk in darkness but will have the light of life. (John 8:12)

Burning candles, Willshire Cemetery

Burning candles, Greenlawn Cemetery, Wapakoneta, Ohio
Candles are sometimes seen in a group of three, symbolizing the Holy Trinity.

Burning candles, Riverside Cemetery, Rockford, Ohio
The Grim Reaper and Death Angel are snuffing out a candle, symbolizing death.

Grim Reaper & Death Angel snuffing out candle, King’s Chapel Burying Ground, Boston, MA
A broken candle symbolizes an early death, at a young age.