This is not only the light and warmth it brings, but also the key role it plays in human history. This kind of flame, with its infinite energy and potential, has promoted our progress and changed our way of life, so it is natural to be called the "flame". For the ancients, fire was regarded as a gift from heaven, so it was called "skyfire". This kind of fire is considered sacred and pure, representing the power of nature and the will of the universe. The visible part of fire, which we call "flame", can take on an ever-changing form with the vibration of particles, even taking on a magnificent form of plasma at extremely high temperature.