Why are Norwegians so happy? In a word: 'koselig'
https://edition-m.cnn.com/2019/04/30/health/norway-koselig-hygge-cozy-nature-chasing-life-wisdom-project/index.html?r=https%3A%2F%2Fedition.cnn.com%2F
It's important for us to keep a good balance between convenience of dailylife and stability of mental state.
When we pursuit the former one, many workers have to be worried about mental disease. On the other hand, those who pursuit the latter will lose civilized life.
