The song lyrics describe a cycle of love and fear between two people. The singer promises to be a source of hope, guidance, and support for the subject as either a "burning sun" or "match" who lights their way. This cycle of being together and having difficulties will repeat until the feelings of love run out between them. The singer says they will continue in this cycle, being the subject's "light" and source of both comfort and fear, until the love fades away.