The song "Running" by Martin Jensen, Cheat Codes & Theresa Rex is about the feeling of being lost and longing for someone when they are not around. The narrator expresses their deep sadness and their constant search for their loved one, knowing that they are waiting for them. They feel incomplete without this person and can't wait to be reunited with them. The lyrics convey a sense of urgency and determination as the narrator continuously runs towards their destination, which is being with their loved one. They feel a strong sense of belonging when they are with this person and home becomes synonymous with their presence. Overall, "Running" is a heartfelt song that captures the emotions of longing, love, and the desire to be reunited with someone special.