Please check out this video.  It’s probably the best explanation of The Hero’s Journey out there.

http://io9.com/joseph-campbell-and-the-heros-journey-as-explained-by-602633720

The comments following the video raise some interesting questions.

Does The Hero’s Journey apply to 100% of the population, or only 50%.  Does The Heroine have a (different) journey all of her own?

And what about the characters in Game of Thrones?

Hmmm.  Got a lot of thinking to do on this beautiful warm summer’s day.