我在红楼你在西游
[wŏ zài hóng lóu nĭ zài xī yóu]
The term refers to two different famous classic novels of China, 'Dream of the Red Mansion' and 'Journey to the West.' The user wishes to show the difference between the two works, indicating that while I am in one classic world, you are in another, implying a separation or yearning between each other. It suggests an appreciation for classical literature.