The saying "holding a pen like a brush" is widely circulated in China, which mainly describes that some people's brushwork and posture when writing calligraphy and painting are similar to the way of using a pen. Specifically, when using a brush, you need to tighten your fingers, relax your wrists, control the thickness and length of strokes with your elbows, and adjust the angle and pressure of the pen tip. "Holding a pen like a brush" refers to using similar hand movements and postures when using pens, ballpoint pens and other common stationery. This view may stem from the importance and influence of the brush in China's traditional calligraphy art, and it is also related to the long-term use of electronic products and keyboard input in modern life. Some people are accustomed to finger operation because of their long-term use of keyboards or other digital devices, and apply the same finger operation to the use of pens when writing. It is worth noting that the use of brush strokes and gestures can make writing more fluent and natural, and enhance the aesthetic feeling and artistry of writing. However, if we excessively pursue its form without paying attention to the actual effect and comfort, it may cause fatigue and injury and affect our health. Therefore, when writing or drawing, you should choose your pen and posture reasonably according to your own habits and needs, and pay attention to keeping your body comfortable.