Love burns like fire. I am a metaphor, which means that someone's inner feelings are strong and intense, describing that he or she loves someone or something deeply. Love burning like fire is a very common metaphor, which means that the subject is very eager for a certain emotion or thing, and the inner fire burns like a fiery fire, describing strong emotions and passions.
Love burns like fire, which means that someone loves something or pursues what he loves, has a passionate and hard-working heart, breaks all obstacles and strives to pursue his own goals.