The festival Hanukkah began at midnight on December 21st. It is an is a eight-day holiday and thus ended yesterday. Therefore, it is really too late for me to say Happy Hanukkah—or, Chanukah, if you prefer.
Central to the festival is the menorah. If you read any of the references in the above paragraph, then you grasp the significance of the lighted candles.
The flames symbolize not only remembrance of the rededication of the temple after its desecration, but also that Light of God—of God’s Love, Justice, and Peace—cannot be put out.
All we need do is to light one candle.