As Ariely says: Lancelot fights better than anyone else because he found a way to bring the stress of the situation to zero. If he doesn’t care whether he lives or dies, nothing rides on his performance. He doesn’t worry about living past the end of the fight, so nothing clouds his mind and affects his abilities — he is pure concentration and skill.
This is "somewhat" similar to what Steve Jobs said in his commencement speech at Stanford:
> Remembering that I'll be dead soon is the most important tool I've ever encountered to help me make the big choices in life. Because almost everything — all external expectations, all pride, all fear of embarrassment or failure - these things just fall away in the face of death, leaving only what is truly important. Remembering that you are going to die is the best way I know to avoid the trap of thinking you have something to lose. You are already naked. There is no reason not to follow your heart.
Atwood closes with: "concentrate on the daily routine of doing what you enjoy, what you believe in, what you find intrinsically satisfying." What this fails to take into take into consideration is that unless you are focusing on the "right" things, this pattern can be more harmful. On most days I just want to meditate, catch up with family, exercise and perhaps hang out on the beach or travel to exotic places. I don't currently find work intrinsically satisfying (a majority of the working population don't find their work intrinsically motivating).
This is also bad advice if you are depressed. It just doesn't work then. Most days you want to sleep in, stay within your space, and think about darker stuff. Completely unrelated but the reason many people fail to quit smoking or quit eating unhealthy things is not because they don't know that these habits are bad for them but because in that moment, they are unable separate their desire from what they should be doing for the long term betterment of themselves.
I'm assuming that the author is primarily writing this post for programmers/computer scientists and how they can focus on increasing their skills in their chose field, but this post is generic enough that I though my comment may be relevant enough to add to the discussion.