Definition.com
A Minorah is representative of the fact that a mitzvah is like a candle. Just as even one small light can dispel much darkness, so too every mitzvah, no matter how small it may seem, has an effect in dispelling lots of spiritual darkness and bringing light to the world. Rabbi Marco:the Menorah teaches us that a mitzvah is like a candle. Just as even one small light can dispel much darkness, so too every mitzvah, no matter how small it may seem, has an effect in dispelling lots of spiritual darkness and bringing light to the world. For this reason the lights have to burn in the night when it is dark. May we all have a deLIGHTFUL Chanukah.”