Depression is like mourning, and mourning can cause depression. It’s like grief and fear, too, generic terms for what happens when you lose something, or are afraid of losing something; for when you fall, or have already fallen. But depression is also different: it’s coupled to another kind of loss—the loss of reality. Life-changing events make you see the world differently—when you fall in love, you gain a whole new world; when you lose someone, you lose a