When Norman Vincent Peale wrote The Power of Positive Thinking 60 years ago, he received a stack of rejection slips from publishers.

Dejected, he threw the manuscript into the trash, forbidding his wife to remove it. She didn’t.

The next day, however, she took the manuscript, still inside the wastebasket, to a publisher who accepted it. The book became a foundation of the human potential movement, selling more than 20 million copies in 47 languages.

Much of Peale’s homespun advice sounds quaint or even amusing to us today. Still, the book did a good job of articulating a basic truth:

To a great extent, you create your world with your thoughts. Most personal achievements begin with an abiding faith that we can and will accomplish them.

Even realizing your goals, however, will not lead to lasting satisfaction. That’s because human wants are insatiable.

Most of us are trapped on what psychologists call thehedonic treadmill. We work to achieve what we desire. Those things satisfy us for a while, but we soon adapt to them and dissatisfaction returns. So next time, we set the bar a little higher…

Our lives can easily become a pastiche of unfulfilled desires. We yearn for a better-paying job, more recognition, greater social status, a newer car, a bigger house, a firmer abdomen, perhaps even a sexier spouse.

Dissatisfaction is not all bad, of course. Desire can motivate us to achieve good things in our lives, too.

But a continual sense of lack creates anxiety. It undermines our satisfaction. Peace of mind eludes us.

Fortunately, the ancient Stoic philosophers had a technique you can use to override the adaptation process and recapture the contentment we seek. It’s called negative visualization.

The technique is to spend some time each day imagining that you have lost the things you value most. Vividly imagine, for example, that your job has just been terminated, that your house – with all your possessions – has burned to the ground, that your partner has left you, or that you have lost your sight, your hearing, or the use of your limbs.

This sounds horribly bleak, I know. But the Stoics were onto something here. They understood that everything we enjoy in life is simply “on loan” to us from Fortune. Any of it – all of it – can be recalled without a moment’s notice.

Epictetus reminds us, for example, that our children have been given to us “for the present, not inseparably nor forever.” His advice: In the very act of kissing your child, silently reflect on the possibility that she could die tomorrow.

The Roman philosopher Seneca advises us to live each day as if it were our last, indeed as if this very moment were our last. He’s not suggesting that you drop your responsibilities and squander the day in frivolous or hedonistic activities. He’s encouraging you to change yourstate of mind.

Maybe you are already living the dream you once had for yourself.

Along the way, however, you became jaded, bored, numb to the blessings that surround you. The goal of the Stoics would be to wake you up, to make you appreciate what you have today.

Some will argue that negative visualization is fine for those who are happy, healthy, and prosperous – but how about the troubled, the less fortunate?

Negative visualization works for them, too. If you have lost your job, imagine losing your possessions. If you have lost your possessions, imagine losing the people you love. If you have lost the people you love, imagine losing your health. If you have lost your health, imagine losing your life.

There is hardly a person alive who could not be worse off. That makes it hard to imagine someone who wouldn’t benefit from this technique.

Adaptation diminishes our enjoyment of the world. Negative visualization brings it back.

It also prepares us for life’s inevitable setbacks. Survivors of tornados, earthquakes, hurricanes, and other natural disasters, for example, may suffer terribly. Yet afterward, they often tell us that they were just sleepwalking through life before. Now, they are joyously, thankfully alive.

No one should need a catastrophe to feel this way. You can attain the same realization through negative visualization. Moreover, it can be practiced regularly, so its beneficial effects, unlike a catastrophe, can last indefinitely.

Try it and you’ll see. I’ve found it’s perfect for when you’re standing in line or stuck in traffic, time that would be wasted otherwise.

By contemplating the impermanence of everything in your world, you can invest all your activities with more intensity, higher significance, greater awareness.

In sum, Norman Vincent Peale got it half-right. Positive visualization helps you get what you want. Negative visualization helps you want what you get.

[Ed. Note: Alex Green is Investment Director and Chairman of The Oxford Club, and is the bestselling author of The Secret of Shelter Island: Money and What Matters. His new book – described by Michael Masterson as “shockingly good” – explores money, meaning, and the pursuit of the good life. To pick up a copy, click here.]

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Alexander Green is the Investment Director of The Oxford Club. A Wall Street veteran, he has over 20 years experience as a research analyst, investment advisor, financial writer and portfolio manager. Under his direction, The Oxford Club’s portfolios have beaten the Wilshire 5000 Index by a margin of more than 3-to-1. The Oxford Club Communiqué, whose portfolio he directs, is ranked fifth in the nation for risk-adjusted returns over the past 10 years by the independent Hulbert Financial Digest. Mr. Green has written for Louis Rukeyser and several other leading financial publications. He has been featured on The O’Reilly Factor, and has been profiled by The Wall Street Journal, BusinessWeek, Forbes, Kiplinger’s Personal Finance, C-SPAN and CNBC among others. He currently writes and directs the twice-weekly Oxford Insight e-letter and three short-term trading services: The Momentum Alert, The Insider Alert and The New Frontier Trader, as well as the editor of "Spiritual Wealth," a free e-letter about the pursuit of the good life. Mr. Green is also the author of two bestsellers “The Gone Fishin’ Portfolio” and “The Secret of Shelter Island: Money and What Matters.”