I've learned through my own experiences that working toward an objective in your life can change who you are.
If the limit of age 80 is at the summit of Mt Everest, the highest place on Earth, one can never be happier.
I've been doing extremely dangerous activities for a long time, but I've been lucky enough to have survived so far. However, sooner or later we all die... and, if that's the case, I want to die doing what I love to do the most. That's how I view death.
When I planned to ski Everest, the first thing I faced was, 'How can I return alive?' All the preparation and training was based on this question. But the more I prepared, I knew the chance of survival was very slim. Nobody in the world had done this before, so I told myself that I must face death. Otherwise, I am not eligible.
I never imagined I could make it to the top of Mount Everest at age 80. This is the world's best feeling, although I'm totally exhausted. Even at 80, I can still do quite well.