The song "Alive" by Union J showcases nostalgia for the past and the desire to relive those moments. The lyrics reflect on the days when the singer and their loved one were close and carefree, spending time together under the sky. The lyrics express a longing to go back to the innocence of their youth and the bond they shared. The chorus implies a strong connection between the two individuals, emphasizing that they don't need anyone's advice or validation because they make each other feel alive. The singer asks if their partner feels the same, suggesting a longing for them to be together and create something amazing. The second verse acknowledges the lies they told to protect each other and mentions going their separate ways to explore new experiences. Despite the changes, the lyrics express a heartfelt longing for the past and what could have been. Overall, "Alive" tells the story of a deep bond between two people and their shared desire to recapture the magic of their past connection. It represents the longing for a simpler, more carefree time and the feeling of being alive when in each other's presence.