A few days ago, I received a message from Xianji. Thanks to his kindness, he asked me to write a preface for his new collection. I was so nervous and hesitant that I didn't dare to start writing at first, worrying that my rough writing would ruin the beauty of Xianji's whole piece. After several days of deliberation, I was finally moved to put pen to paper. I hope you can forgive my shortcomings.