The song "Lonely When You Leave" by Jim Cuddy tells the story of a person who encounters someone from their past unexpectedly while walking down familiar streets. The person's memories are stirred up, and they notice the grey skies above, reflecting their somber mood. Despite being in a place they wouldn't usually visit, they feel drawn to it that day. As they approach the person they encountered, the person smiles at them, and they wonder what they are going to do. The lyrics imply that there is a connection between the two individuals, but it is not clear what that connection is. The song then shifts to a summer setting, where the person and the other individual are isolated from the rest of the world. They enjoy the solitude and the tall grass surrounding them. The person reflects on how they used to always be on the move, feeling left out and wanting to prove themselves. But being with the other person has changed their perspective, and they no longer feel that way. The chorus reveals the fear of loneliness once the other person leaves. The person acknowledges that life is unpredictable, and sometimes two people come together knowing that their time together won't last forever. However, despite this uncertainty, the person finds solace in the shared moments of light and happiness that the other person has brought into their life. They remain hopeful and determined not to run away from whatever challenges may come. The repetition of the chorus emphasizes the loneliness the person feels when they envision the other person leaving. It reflects their apprehension about returning to their previous state of loneliness once the connection is gone. Overall, "Lonely When You Leave" explores themes of unexpected reunions, the transformative power of relationships, and the fear of losing the connection that brings light and purpose to one's life. It highlights the bittersweet nature of relationships and the beauty found in temporary connections.