There are three realms for university questioners who have made great achievements in ancient and modern times: Wang Guowei mentioned in "Words on Earth" that university questioners who have made great achievements in ancient times must go through three realms: the first realm: last night, the west wind withered trees, and they looked at the horizon alone on a tall building. The second realm: the belt is getting wider and wider without regret, which makes people haggard for Iraq. The third realm: looking for him in the crowd, suddenly looking back, that person is there, the lights are dim.