ritual and tradition
You light 9 candles on Hanukkah, and there is no tradition of asking why, unless there are guests in the home who don't know about Hanukkah.
Hanukkah is one holiday in which you would light candles.
To light a menorah, start by placing the candles in the holders, with the taller "helper" candle (shamash) in the center. Light the shamash, then use it to light the other candles from left to right on the menorah each night of Hanukkah. Recite the blessings while lighting the candles.
They light candles.
a match
White candles reflect the light in the experiment.
There are only eight candles on the menorah; plus a ninth which is used to light the other candles.
They had candles to light rooms.
Typically, candles are lit for light or for religious or spiritual purposes.
Candles are used to make light.
Unless you have a dog that is trained to light candles, I would recommend that people do it.
about 4 candles can light up a bed area