What is Understood by Fire Used Figuratively.
Fire, particularly in poetry, often signifies love, and is employed more elegantly in the plural than in the singular. Corneille often says “un beau feu” for a virtuous and noble love. A man has fire in his conversation; that does not mean that he has brilliant and enlightened ideas, but lively expressions animated by action.
Fire in writing does not necessarily imply lightness and beauty, but vivacity, multiplied figures, and spontaneous ideas. Fire is a merit in speech and writing only when it is well managed. It is said that poets are animated with a divine fire when they are sublime; genius cannot exist without fire, but fire may be possessed without genius.