Why do you need to blow out candles on your birthday?

Some say this custom began in ancient Greece. In ancient Greece, people worshiped Artemis, the moon goddess, and held a birthday celebration for her every year. On the altar, a cake made of flour and honey was placed, with many lighted candles on it. They compared the light emitted by candles to the clear glow of the moon to express their special worship of the moon goddess. Later, when the ancient Greeks celebrated their children's birthdays, they also liked to put cakes on the table, with many small lighted candles inserted on the cakes, and they also added the content of blowing out the candles. They believe that burning candles have some magical and secret power. When the birthday person silently makes a wish in his heart, he can blow out all the candles in one breath and his wish will come true. This custom has been passed down to modern times and has become popular in many countries.