At first the man feels physical pain (the skate board accident), but this is not the worst thing that can happen. Then he experiences mental pain (as you see on the phone), this is worse then the physical pain. This man bases his life on the pain he feels, and the hurt just gets worse. Then the man realizes how beautiful life really is, quickly he changes his life from living in the pain, to living in the happiness and rapidly things begin to change (the reverse).
THIS TOOK ME FOR EVER! Over 8 months easy. AS the movie progress's you will see the style change and the animation get better for the improvement of skill. All together this movie went through about 12 different phases. And this is easily one of my best works yet.