It sounds like you might be referencing a lyric or a poetic phrase! If you're asking about the meaning of dreaming about someone, dreaming about someone often reflects your thoughts, emotions, or subconscious feelings toward that person. Dreams can be influenced by memories, desires, fears, or unresolved issues. If you want, I can help you interpret a specific dream or provide information about the phrase "when I dream about you" in songs, poems, or literature. Just let me know!