我的梦里曾经有过你
[wŏ de mèng lĭ céng jīng yŏu guò nĭ]
Means 'You used to exist in my dream', revealing reminiscence about a certain individual left behind in dreams but not real life now. Dreamland can either be utopian place holding all perfect imaginations before bedtime, or represent subconscious desire of meeting special one once again somehow through sleep.