So much of the time when we talk about mood boosters, we talk about it as if it were something to find. Self-help gurus, career coaches, and bloggers alike issue practical advice about “how to find what makes you happy.” Philosophers debate “the true meaning of happiness,” charting the pathway to finding it. But what if happiness were less about “finding” and more about “minding”? As the second-century Greek philosopher, Epictetus, once said: “[Human beings] are…