To eliminate non-essentials means saying no to someone. Often. It means pushing against social expectations. To do it well takes courage and compassion. So eliminating the non-essentials isn’t just about mental discipline. It’s about the emotional discipline necessary to say no to social pressure.

When we are unclear about our real purpose in life – in other words, when we don’t have a clear sense of our goals, our aspirations, and our values – we make up our own social games. We waste time and energies on trying to look good in comparison to other people. We overvalue non-essentials like a nicer car or house, or even intangibles like the number of our followers on Twitter or the way we look in our Facebook photos. As a result, we neglect activities that are truly essential, like spending time with our loved ones, or nurturing our spirit, or taking care of our health.

There are far more activities and opportunities in the world than we have time and resources to invest in. And although many of them may be good, or even very good, the fact is that most are trivial and few are vital. The way of the Essentialist involves learning to tell the difference — learning to filter through all those options and selecting only those that are truly essential.

The word school is derived from the Greek word schole, meaning “leisure.” Yet our modern school system, born in the Industrial Revolution, has removed the leisure — and much of the pleasure — out of learning.

One simple answer is we are unclear about what is essential. When this happens we become defenceless. On the other hand, when we have strong internal clarity it is almost as if we have a force field protecting us from the non-essentials coming at us from all directions.

Thich Nhat Hanh, the Vietnamese Zen Buddhist monk who has been called the “world’s calmest man,” has spent a lifetime exploring how to live in kairos, albeit by a different name. He has taught it as mindfulness or maintaining “beginner’s mind.” He has written: “Mindfulness helps you go home to the present. And every time you go there and recognize a condition of happiness that you have, happiness comes.”2 This focus on being in the moment affects the way he does everything. He takes a full hour to drink a cup of tea with the other monks every day. He explains: “Suppose you are drinking a cup of tea. When you hold your cup, you may like to breathe in, to bring your mind back to your body, and you become fully present. And when you are truly there, something else is also there — life, represented by the cup of tea. In that moment you are real, and the cup of tea is real. You are not lost in the past, in the future, in your projects, in your worries. You are free from all of these afflictions. And in that state of being free, you enjoy your tea. That is the moment of happiness, and of peace.” Pay attention through the day for your own kairos moments. Write them down in your journal. Think about what triggered that moment and what brought you out of it. Now that you know what triggers the moment, try to re-create it. Training yourself to tune into kairos will not only enable you to achieve a higher level of contribution but also make you happier.