There is another important information towards the end of the article: different cultures have different connotations of “happiness”—high arousal positive state (enthusiasm or excitement) vs. low arousal positive state (calm and serenity). The latter can be held for a long time, the former can not.
Not only different culture. Even different age groups of the same culture have different notions.
Not only different culture. Even different age groups of the same culture have different notions.