Here is what I teach my students. Fire is not something that we leave unattended. Any candle package these days tells you to always attend a candle, etc. etc.
When we light a candle, it is a sign that we are doing something important. It is a way of saying “pay attention”. In our current culture, we light them for Birthdays, special holidays, special get togethers, when we are calling special attention to something.
The candle symbolizes that attention is being given. A votive shows that we are paying attention to the intention.