Blackbelts in to many styles are given away to easily anymore. As far as what you get out of martial arts, It will be based on what you put into it.

When you go to the dojo they will teach your body its martial language and words. They may help you build your martial vocab to a respectable level. With drills and competing with others
But it is on you to write poetry with your body, That extra step is always on you, Everyone has their own way of becoming an artist, But that is half the fun.