梦里梦外都是伱心底心里全是伱
[mèng lĭ mèng wài dōu shì nĭ xīn dĭ xīn lĭ quán shì nĭ]
The username expresses deep infatuation with someone. Literally meaning 'In my dreams and realities it's all about you,' indicating that the person dominates one's consciousness whether awake or dreaming.