The spirit is the most essential thing. I like these sayings and stories from Hagakure, the old samurai classic:
According to what one of the elders said, taking an enemy on the battlefield is like a hawk taking a bird. Even though it enters into the midst of a thousand of them, it gives no attention to any bird other than the one that it has first marked.
Among the maxims on Lord Naoshige's wall there was this one: "Matters of great concern should be treated lightly." Master Ittei commented, "Matters of small concern should be treated seriously."
It is said that even after one's head has been cut off, he can still perform some function. This fact can be known from the examples of Nitta Yoshisada and Ono Doken. How shall one man be inferior to another? Mitani Jokyu said, "Even if a man be sick to death, he can bear up for two or three days."
When meeting calamities or difficult situations, it is not enough to simply say that one is not at all flustered. When meeting difficult situations, one should dash forward bravely and with joy. It is the crossing of a single barrier and is like the saying, "The more the water, the higher the boat."
Once a group of ten blind masseuses were traveling together in the mountains, and when they began to pass along the top of a precipice, they all became very cautious, their legs shook, and they were in general struck with terror. Just then the leading man stumbled and fell of the cliff. Those that were left all wailed, "Ahh, ahh, how piteous!" But the masseuse who had fallen veiled up from below, "Don't be afraid. Although I fell, it was nothing. I am now rather at ease. Before falling I kept thinking 'What will I do if I fall?' and there was no end to my anxiety. But now I've settled down. If the rest of you want to be at ease, fall quickly!"