Rather, ikigai is about feeling your work makes a difference in people's lives.

How people find meaning in their work is a topic of much interest to management experts. One research paper by Wharton management professor Adam Grant explained that what motivates employees is "doing work that affects the well-being of others" and to "see or meet the people affected by their work."

Hasegawa points out that in English, the word life means both lifetime and everyday life. So, ikigai translated as life's purpose sounds very grand. "But in Japan we have jinsei, which means lifetime and seikatsu, which means everyday life," he says. The concep...