What we do on some great occasion will probably depend on what we already are; and what we are will be the result of previous years of self-discipline.
A why has to be for others. It's something you give to the world. It's the reason your friends love you because this is the thing that you give them and it fulfills them. This is the reason your clients love you or your fans love you because you give them something. It's something to offer, that's what the why is.