So how about the guy that cuts his own leg off, that is trapped, and hobbles through the woods for three days to civilization? Did he not will himself to live? Eventually most people give up, lose their will, become broken, and that is when death sets in. The capability of our will is astounding. We can impose it on others through force or charisma to achieve goals that are too great for one person. Through our will we practice, train, build ourselves to become better. No, you can't, through sheer will, fly on your own. I agree that is impossible. However, through your will power you can discipline yourself to go to hang gliding classes until you're certified to fly on your own, with a hang gliders help of course.
Reality is in the eye of the beholder. Perception is the majority of what reality is. anyone who has taken large doses of mushrooms or LSD know exactly what I'm talking about. It is a crazy moment to look down a hallway, that you have looked down for ten years, and see it completely different.
You can see yourself as a slave to your boss, a slave to the system, a slave to your instincts and inner impulses, or you can see yourself as a completely free being with the world at their finger tips... I'm gonna warn you though, it's going to take a lot of hard work.