The first state: the west wind withered the green trees last night, and I went up to the tall building alone, looking to the end of the world - study diligently; the second state: the clothes are getting wider and wider, but I don't regret it, and I feel haggard because of the beauty - Searching hard; the third realm: looking for her thousands of times in the crowd, suddenly looking back, there is that person in the dim light - great enlightenment.