Like these burning candles, people need to stay close together in their souls and spirits so that each one's "fire" may join with the "fires" of the others. The combined fire has more heat and brighter light than a lone fire, and it can withstand wind blows. When one's fire goes out, the other fires close by are able to rekindle it back.
Life may be compared to these burning candles, ready or not, someday it will all come to an end. When that time comes, the only thing that matters is how you matter to God and your fellowmen.
It is always never too late to live a life that truly matters to God and fellowmen.