The light of God
The candles on the altar symbolize the presence of the Holy Spirit in worship.
candles, alter, lecterns, stained glassed windows, bibles, gargoyles.
It means that they are candles
Because scented candles are scented using a chemical smell that will make the flame burn more through the candles wax.
Candles can represent lots of things
The main difference between scented and unscented candles is the addition of fragrance oils in scented candles. Scented candles contain essential or synthetic fragrance oils that impart a specific scent when burned, whereas unscented candles do not have any added fragrance. The fragrance oils in scented candles can affect the burning properties and potentially alter the color of the wax.
The same as it means elsewhere: alter = change.
The conclusion is that colored candles tend to burn faster than white candles due to the additional pigments and chemicals added to create the color. These added components can alter the burning process and result in a faster consumption of the colored candle compared to the plain white one.
Las velas.
Not sure what you mean, but unless question is made clearer, candles are not a resurrection of Jesus.
It can mean "candle", "sail", "sailing".
Mexican marigold flowers, candles and sugar skulls qualify as such.