Candle Magick, for the most part, works on three principels: The color of the candle; The type of oil used to dress it; And the sigils carved on it (or the paper you put underneath of it). I have seen/done successfull candle magick magick with only one of the preceeding..a cande, so dont let that list daunt you. The MAIN thing in candle magick (as in any magick) is INTENT INTENT INTENT!! If you have that, you can not fail.
Candle magick is also very versatile and will often be used by adepts simply to center and focus.
A simple candle spell could consist of the following:
Take a virgin candle, preferably in a color representing your need, if that is not avalable the all purpose WHITE candle should be used. Dress the candle with oil, an oil fitting to your need should be used here, if you are not sure about the oils..use regular olive oil, or even vegtable oil, but..NOT any animal oil!! If you are wanting to banish something, you would start at the center of the candle with the oil, and rub out to the ends...stating that "this candle is now consecrated in the name of the Lord and Lady, and any negativity is released" or something similar, (you would do this regardless of banishing or drawing..if drawing,however, you would rub from the ends IN to the center). Then you would carve in any symbols you care to use, runes are popular with alot of people. You should then take a moment to focus on what it is you want, picturing the OUTCOME as clearly as you can. Light the candle, and let it burn down all the way, or as far as possible, relighting it again as soon as you can, till it is consumed. As the flame dies out, state your need firmly, even if its to yourself, state it, then let it go, know that it is done.