Too many possiblities

I have had a hard time deciding what to write in this blog post. Not because I can't think of anything, but because I can't seem to pick one of the hundreds of potential topics to discuss. I have, however, always been struck by the idea of the Missionaria Protectiva. The concept reminds me of Cortes' welcome as a God when he first came to the Americas. While their was no conceived plot to plant the idea of a religious prophet within the Aztec religious beliefs so that it could later be used to destroy the empire, the impact of the Aztecs' belief that Cortez was their long awaited prophet is undeniable.
The next interesting question, of course, is whether or not establishing within religious beliefs within a society is, in fact, within the realm of possibility in the "real world". Christianity already awaits the return of a messianic character but is it actually reasonable to try and be the second coming. What would it take to live up to any mythology. Would you have to be as foreign to a people as Cortes was to the Aztecs, funny colored with strange clothes, and wielding unkown weapons. Or is it possible to fulfill a prophecy--even a prophecy that was laid out for you to fulfill seems like an almost impossible task.