© 2017 Taylor & Francis Group, LLC The purpose of this mixed-methods research project is to theorize the linkage between leisure experience and life worthiness, or what the Japanese call ikigai. A grounded theory analysis of photo-elicitation interview data from 27 Japanese university students led to the inductive development of a substantive theory. This theory was then tested based on online survey data collected from 669 Japanese students using structural equation modeling. Results indicate that leisure pursuits enhance students’ perception of ikigai when they are valued as enjoyable and/or effortful. Moreover, the balance between overall enjoyment and/or effort is found to be a key mediator in the relationship between valuable leisure experience and life worthiness. Ikigai comprises the subjective perceptions that one's daily life is worth living and that it is full of energy and motivation. Our findings are discussed in light of relevant leisure and well-being theories as well as their implications for practice.