Social life was the locus of our third set of differences. As you might expect, connections to other people turned out to be important both for meaning and for happiness. Being alone in the world is linked to low levels of happiness and meaningfulness, as is feeling lonely. Nevertheless, it was the particular character of one’s social connections that determined which state they helped to bring about. Simply put, meaningfulness comes from contributing to other people, whereas happiness comes from what they contribute to you. This runs counter to some conventional wisdom: it is widely assumed that helping other people makes you happy. Well, to the extent that it does, the effect depends entirely on the overlap between meaning and happiness. Helping others had a big positive contribution to meaningfulness independent of happiness, but there was no sign that it boosted happiness independently of meaning. If anything, the effect was in the opposite direction: once we correct for the boost it gives to meaning, helping others can actually detract from one’s own happiness.

Do you want a meaningful or a happy life? – Roy F Baumeister – Aeon