What does happiness mean?

Happiness is an overall and positive evaluation of people's quality of life according to personal standards, including cognitive and emotional components.

Psychological well-being and subjective well-being are two directions of happiness research in contemporary psychology. The difference between them mainly lies in the different definition of happiness, which leads to the different research methods, measurement tools and evaluation indicators of happiness. Psychological well-being is a relatively stable cognitive and emotional experience produced by individuals through comprehensive evaluation of quality of life according to their own standards. Its evaluation indicators include self-acceptance, personal growth, life goals, good relationships, environmental control, independence, self-realization and vitality.