2. The difference is that Baishi didn't directly say that he was struggling to dream, but thought of Yuan Zhen and asked him why he remembered me, which made me dream of Jun last night. Ink and wash came from the other side, corresponding to the contrast, and the idea was ingenious. Yuan Shikai said that he dreamed of irrelevant people, but he didn't dream of Bai Juyi. Contrary to his intention, he wrote new ideas and profound contents with the sadness of not dreaming of his friends. (That's right)