Not only martial arts, piano, chess, calligraphy and painting, but also your usual work and study. For example, when you solve a math problem, you can calm down by thinking wholeheartedly. If you think about many things that have nothing to do with solving the problem, such as "how much is this problem?" "What if I did something wrong?" Wait, I must be confused in my heart. Everyone who went to school knows that.
Meditation should be the best way to meditate, but people who practice meditation may not always be calm. On the contrary, some people will become more and more confused, just because they can't overcome the problem of thinking, which may not be obvious at ordinary times. Sitting down and closing your eyes will bring all kinds of delusions and troubles.
If you want to stay calm at any time at ordinary times, you can try two methods:
1. When you do something (or think about a problem), set a time for yourself, concentrate on it and don't think about anything else; Outside at this time, just throw it away completely.
2. Look at only one thing at a time, that is, look, don't want to, and focus on the vision.