Why is temporary paste the key to learning calligraphy well?

It is indisputable that copying is the first step in learning calligraphy. The so-called copying is to grasp the essence of calligraphy works of past dynasties in your own hands, and then become the unique face of calligraphers. To learn from our predecessors, we must first be respectful, write whatever he writes, understand his meaning and learn his form. First, don't have selfish distractions, put aside your writing habits and draw a gourd ladle one by one; Second, don't make it up at will, don't think it's not good-looking, change it for him. I remember many years ago, a unit asked Mr. Lin Sanzhi to write some signboards, and a leader took a brush to modify one of them according to his own intention, which made the people present dumbfounded. Copying should also pay attention to methods. It is ok for highly technical work, but it is not suitable for art. We need to be skilled, but not vulgar. Practice can lead to vulgarity, and practice can lead to death. I once met an old man in his sixties, who loved Wang Xizhi's Preface to the Lanting Pavilion. He kept coming to the clinic, and the manuscripts he came to were all mixed up. But when we look at his manuscript, there is no trace of Preface to Lanting, and it is vulgar. Therefore, we should use our brains to copy, to be precise, we should use our thieves' brains to copy, be honest in life and be thieves in art! (Sun Boxiang) As long as you write and practice every day, you can't think that you can write well. Not necessarily! Writing more is certainly one of the factors to write a good hand, but if you don't try to figure it out with your heart, you will always be rejected by the art palace. This is probably the reason why the ancients emphasized "copying hands and chasing hands" and "words are heart paintings".