Since ancient times, there are many poems that compare spring to a line, and say that the sorrow is spring sorrow, probably the love and painting are connected, the scene is blended, the cut is continuous, the reason is still chaotic, the sorrow is from the spring, and the spring is like sorrow. The dots and lines are intertwined, not only the spring growth, but also thousands of thoughts entwined in it, each stroke, meaning eternal