A κεριά (candle) is a cylindrical or rectangular object made of wax, often with a wick in the center. When lit, the wick burns the wax, producing light and sometimes heat. Candles come in various sizes, colors, and scents, making them popular for both practical and decorative purposes. Historically, κεριά were used for illumination before the invention of electric lights. They are often associated with celebrations, such as birthdays and religious ceremonies, where they symbolize hope and warmth. Today, candles are also used in aromatherapy and relaxation, enhancing the ambiance of a space.