The song "Heartbeat" by Ben Hazlewood explores themes of vulnerability, fear, and finding solace in someone else. The lyrics depict the struggles of the narrator, who is exposed and afraid to show their true emotions. They feel as though they are running out of ways to hide their fears and find it terrifying in their own mind. Despite this, the narrator finds comfort and strength in a relationship or connection with another person. They express gratitude towards this person for fighting their fears and providing support and understanding that they cannot fully explain. It is through this bond that the narrator is able to breathe again and find peace. The song also acknowledges the unintentional burden the narrator feels they may have placed on their partner. They mention dragging them down and filling every void with fear, but they believe it is all worth the fight for the pain to rise. The chorus emphasizes the intensity of the emotions they experience, with a raging heartbeat symbolizing the turmoil they face. Yet, they find solace and resolve in holding onto their partner through the pain. The bridge of the song expresses the hope of finding light and a place to breathe amidst the haze of pain. The narrator envisions a future where they can exhale and be free, embracing peace that they may currently struggle to see. Overall, "Heartbeat" portrays the emotional journey of a person who finds comfort, resilience, and hope through a deep connection with another individual, allowing them to overcome their fears and experience inner peace.