Nik Wallenda successfully crossed over Niagara Falls as high as 135 feet (41,15 meters) to run on top of the steel wire measuring 2 inches (about 5 cm). What a thrilling action. It looks like Nik has no fear. However, it turns out he doesn't think of himself as someone who brave. Nik Wallenda has fear too.
According to him, what he does is art, not as people who lose their fear. He Though, "people who have no fear is people doing something what others don"t, but never practiced in the slightest." While Wallenda  train hard for months before actually doing the action.

"Basically Wallenda's brain is no different to the other human brain. But someone learns to compromise with the pressure and fear in different ways, "says Jeff Wise, author of Extreme Fear: The Science of Your Mind in Danger.
There is no rational fear. He does not come from prefrontal cortex; our brain processing of emotions in parallel. So, if most people will feel the heart beating immediately, for fear of falling even dead, but someone like a Wallenda know how to control, for him it's just like walking on the edge of the sidewalk.

The fact, Wallenda walking on the rope has been a very long time (since the age of 2 years, or even before he was born. Everything is natural.

Wallenda also recognizes what it does. So for the last 6 months, she trained hard with crossed straps with the same distance but closer to the ground. At that time he was already visualizing himself crossing the Grand Canyon.  Until he actually crossed in the Grand Canyon, he imagines himself being turn them over to the practice. (Discovery)

It is the natural right of every human being to be happy to escape all the miseries of life. Happiness is the normal condition, as natural as the landscapes and the seasons. It is unnatural to suffer and it is only because of our ignorance that we do suffer. Happiness is the product of wisdom. To attain perfect wisdom, to comprehend fully the purpose of life, to realize completely the relationship of human beings to each other, is to put an end to all suffering, to escape every ill and evil that afflicts us. Perfect wisdom is unshadowed joy.

Why do we suffer in life? Because in the scheme of nature we are being forced forward in evolution and we lack the spiritual illumination that alone can light the way and enable us to move safely among the obstacles that lie before us. Usually we do not even see or suspect the presence of trouble until it suddenly leaps upon us like a concealed tiger. One day our family circle is complete and happy. A week later death has come and gone and joy is replaced with agony.

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