Hanukkah's central theme is the Festival of Lights. The essential ceremony performed during Hanukkah is the illumination of the Hanukkah lights. The actual Hanukkah candles or oil lights are held in the Hanukkah, special candelabra of eight candles. (the Hanukkah Menorah
is different from any other menorah, that is a candelabra which holds seven candles and is also parf the seal of the of the state of Israel.). Usually in the middle of the chanukkiah is another candle called the Shamash (servant) This is used for light and is used to light the other lights.
All is to remember the Miracle of the remaining cruse of oil that was pure and should have lasted only one day, but lasted eight nights. It is Jewish custom on Hanukah to eat foods cooked in oil like Latkes (Potato Pancakes) and Israeli Sufganiot (Jelly Doughnuts).