Remember our rule of thumb: The more scared we are of a work or calling, the more sure we can be that we have to do it. - Steven Pressfield

I was keenly conscious of the comrades-in-arms who had fallen with me. A bond surpassing by a hundredfold that which I had known in life bound me to them. I felt a sense of inexpressible relief and realized that I had feared, more than death, separation from them. I apprehended that excruciating war survivor's torment, the sense of isolation and self-betrayal experienced by those who had elected to cling yet to breath when their comrades had let loose their grip.

The moment a person learns he's got terminal cancer, a profound shift takes place in his psyche. At one stroke in the doctor's office he becomes aware of what really matters to him. Things that sixty seconds earlier had seemed all- important suddenly appear meaningless, while people and concerns that he had till then dismissed at once take on supreme importance. Maybe, he realizes, working this weekend on that big deal at the office isn't all that vital. Maybe it's more important to fly cross-country for his grandson's graduation. Maybe it isn't so crucial that he have the last word in the fight with his wife. Maybe instead he should tell her how much she means to him and how deeply he has always loved her.

The sword master stepping onto the fighting floor knows he will be facing powerful opponents. Not the physical adversaries whom he will fight (though those indeed serve as stand-ins for the enemy). The real enemy is inside himself. The monk in meditation knows this. So does the yogi. So do the film editor and the video-game creator and the software writer.