Although I am not from a Catholic background, I have always been strongly drawn to the spiritual practice of lighting candles as an accompaniment to prayer. I like the idea that our prayerful communication with the Divine continues while the candle burns. Spiritually, it's a wonderful idea. From a fire safety point of view, not so much.
That's why I love the website of Brother David Steindl-Rast, a now-elderly Benedictine monk who has made prayer and gratitude his life's work, along with ecumenical dialogue between Christianity and Buddhism. On his site (www.gratefulness.org), you can light a virtual candle which will burn for a full 48 hours, accompanied by your prayer (which can reflect any form of spirituality, of course). Over 7 million of these free candles have been lit since 2001. Simply click on the "Light a Candle" button on the left side of the website's homepage and follow the easy instructions!