I have 9 jumps now, started out to prove to myself I could do it. I was always scared of heights and thought that this would be the ultimate test.
That was before, now I jump because of the intense feelings before, during and after the jump. Nervousness, intense concentration, the freedom of falling, the sense of accomplishment when back on the ground.
I also look around and see that people with really high jump numbers have that same stupid grin after a jump that i know I have.