Definitions of happiness differ

At first glance, there seem to be commonalities in the ways people experience happiness. A 2016 study found that the most common definition of happiness is "an inner harmony, feeling or attitude."

But inner harmony can mean different things in different places. For example, the Danes describe inner harmony in terms of hygge, which is like a comfortable friendliness. Americans usually define inner harmony in the context of work, where their skills meet their passions.