People need to know what fulfills them because they need guideposts to refer to in times of uncertainty. Gary, Reeta, Sharon 

Interviews 10 Stanford students “In a way, I don't know [what] true happiness [is]” “Happiness ... it's definitely less in the domain of tangible things, and more spontaneous experiences where I just feel content with myself and the moment.” “The toughest decisions come down to asking myself what’s is fulfilling me, and often that’s a hard question to answer” 

Insights 1. People know happiness when they experience it but they have difficulty remembering and articulating it 2. A lot of difficult decisions (e.g. careers, majors, day-to-day time management) come down to trying to assess values, happiness, and what matters to you 3. It is common to experience confusion or uncertainty about what is fulfilling to the individual 

Preliminary Stress Model