Firework lights. It is easy to see why a firework lights and lamps display is a metaphor for romance and passion. Going to a fireworks display with your partner is one of the most romantic things you can do together. The sizzle, boom, and pop of fireworks are reminiscent of the same sensations of a first kiss.
Why is firework lights so mesmerizing?
The sudden, bright, moving sparks they emit are compelling to watch and seem mysterious because we’re so unused to the light of that type traveling directly into our eyes. In general, the colors we see are created by light bouncing off the reflective surfaces of objects around us. As we encounter this reflected light all the time, we’ve become very good at unscrambling the colors in our brain and, as a result, anything different can seem otherworldly. This could be why other sources of moving light, like shooting stars and fireflies, are also thought of as magical.
Another reason we look forward to bonfire night is that fireworks scare us. Unlike dogs and young children, who are simply overwhelmed by the noise, adults are spooked by the unpredictable gap between the flash and the bang. It’s been proven that anticipation makes pain or shock worse, which is why doctors have now been advised not to warn patients a blood test may be painful. Source