Candle work is magical work.
Candles have been used for centuries in ritual and magic practice. Fire of the candle is a powerful tool, it can ignite things, create and also remove and destroy and you can also use fire to invoke things.
The candle signifies, light, warmth, celebration, love, hope, commemoration.
It is also about trust. Trusting your practitioner, the practitioner trusting themselves and also that the universe will support them in guiding you to heal.If you have not yet tried Reiki I suggest you do so because there is so much light and healing that comes with it.