One dangerous definition of happiness is to think of happiness as kind of a warm, joyful feeling in your heart that you have to pursue and grab and hold onto for fear that it'll go away. A better way to think about happiness that actually is something that I think you can reach towards is, it's living in accord with your values and in a way that is more open and accepting of your history as it echoes into the present, that's more self-affirming, self-validating and values-based. The Greeks had a word for it; they called it eudaimonia. And it is something that will empower human lives.

What keeps me up at night in a negative way is, if we don't solve the problems of the human heart and of the human head, of human psychology, there is no technological solution so great that it can prevent the world that is coming, and a world of suitcase bombs or of the ability to pollute the planet in a way that it cannot recover, of global warming and the rest. We've created through science and technology a different world that has frightening sides to it, and psychology and behavioral science has to be part of this. We're going to have to find a way to humanize the culture itself.

ACT psychology is a psychology of the normal. A lot of the psychologies that are out there are built on the psychology of the abnormal. We have all these syndromal boxes that we can put people in and so forth. The actual evidence on syndromes is not very good. There's no specific biological marker for any of the things that you see talked about in the media. Even things like schizophrenia - there's no specific and sensitive biological markers for these things. There may be some abnormal processes involved, but vastly more of human suffering comes from normal processes that run away from us.

It's pretty clear in how things are moving in empirically supported treatments that we're going to be speaking to the culture in a different voice. It's going to have some echoes of some of the deeper clinical and spiritual and religious traditions that had wisdom in it. If we're not going to get there through religious means and things of that kind, we're going to have to find a way to put it in the culture in a different way, because we need something right now other than yet another cable shoutcast or yet another Internet Web page showing us the cellulite on the actress's rear end.

Our children are exposed to 10, 20, 30 times the number of words that our great-grandfathers were exposed to. We're exposed in a single day or two to more horror on our Internet Web pages than our great-grandfathers were exposed to in decades of living. We have not created modern minds for that modern world. Science and technology has just dumped it on us. And I think people yearn for it. I think you see it in what's popular. Why are people wanting to learn about meditation and talking about a purpose-driven life? It's because they know more is needed in the modern world.

The prescribers very often overstate, oversell, and the detail people are only too happy to tell them to do that. This idea that there's something wrong with your brain, and by the way, almost never are these antidepressant medications evaluated with what will happen if you're on them for three, four, five, 10, 15 years. Sometimes some of the side effects that come up come up only later, and sometimes they're very severe, even irreversible side effects.

Holding anxiety as your own enemy, and that it has to go down, diminish it, go away and not happen here is a kind of self-invalidating, interiorly focused process that would get you even more entangled with these processes. Instead, what we're going to need to learn to do is to allow your history to bring into the present thoughts and feelings and memories, and to sort of hold them mindfully and self-compassionately, and then focus on what you do and bring them along for that journey.