"There you are, and you suddenly realize that you are spending your whole life just barely getting by. You keep up a good front. You manage to make ends meet somehow and look OK from the outside. But those periods of depression, those times when you feel everything caving in on you, you keep those to yourself. You are a mess. And you know it. But you hide it beautifully. Meanwhile, way down under all that, you just know there has got to be some other way to live, some better way to look at the world, some way to touch life more fully. You click into it by chance now and then. You get a job. You fall in love. You win the game. And for a while, things are different. Life takes on a richness and clarity that makes all the bad times and humdrum fade away. The whole texture of your experience changes and you say to yourself, "OK, now I’ve made it; now I will be happy". But then that fades, too, like smoke in the wind. You are left with just a memory. That and the vague awareness that something is wrong."
—Mindfulness in Plain English, Venerable H. Gunaratana Mahathera