绿色玻璃罐中的燃烧蜡烛。烛光火焰特写视角，思念与祈祷的哀悼概念，竖屏4K视频。

candle in green glass jar. Candlelight flame closeup view thoughts and prayers condolence concept vertical 4k video. A candle is an ignitable wick embedded in wax, or another flammable solid substance such as tallow, that provides light, and in some cases, a fragrance. A candle can also provide heat or a method of keeping time. Candles have been used for over two millennia around the world, and were a significant form of indoor lighting until the invention of other types of light sources. Although electric light has largely made candle use nonessential for illumination, candles are still commonly used for functional, symbolic and aesthetic purposes and in specific cultural and religious settings.