Yes, it is possible to light a cigar with a candle, but it may not be the best method. The heat source provided by a candle may not be hot enough to properly light a cigar, and the wax and scent from the candle can affect the flavor of the cigar.
If you find yourself without a lighter or matches, it's better to use a long wooden match or a butane lighter to light your cigar. A butane lighter is the most common and reliable way to light a cigar as it provides a consistent and strong flame. Avoid using a lighter that uses lighter fluid as the fluid can affect the flavor of the cigar.
If you don't have access to a lighter or matches, you can try using a stove burner or a toaster. Simply hold the cigar over the flame until the end is heated, then puff on the cigar to start the lighting process. Be sure to rotate the cigar evenly to ensure an even burn.
Overall, while you can use a candle to light a cigar in a pinch, it's not the best method, and it's better to use a butane lighter or a match if possible.