Peace means peace, tranquility and harmony. When there are not too many conflicts and contradictions between things, people will feel peaceful. This state makes people feel relaxed, happy and comfortable, without pressure and tension. A peaceful environment and atmosphere can bring people health, peace and inner peace, which is beneficial to physical and mental health and psychological balance. Harmony is also an important virtue in interpersonal relationship and social environment, which requires people to respect others, tolerate differences, understand and support each other, and thus create a harmonious social atmosphere.