A candle gives off a small amount of light, yet even a small light can make a difference in a dark world.

"Ye are the light of the world. A city that is set on a hill cannot be hid. Neither do men light a candle, and put it under a bushel, but on a candlestick; and it giveth light unto all that are in the house. Let YOUR light so shine before men, that they may see your good works, and glorify your Father which is in heaven."