[Star Wars TFA] Luke's goal

After the destruction of his Jedi school, Luke went looking for the first Jedi temple. Why? What would he hope to find there?

About the only reference to ancient Jedi in the entire movie series so far is the prophecy about the Chosen One. We have few details about this prophecy, and it's not clear that the Jedi had any either. This prophecy has tremendous impact on the entire Skywalker line, and is clearly a tremendous motivator for people to do things they would not otherwise do.

I believe Luke went looking for the first Jedi temple because he hoped to find out more about this prophecy. Which means in Episode VIII, we may finally find out what it means to "bring balance to the force". He may believe that Rey is the Chosen One. Luke may have been waiting for her all this time. His faith in this prophecy may be why he was willing to stay so completely out of galactic affairs.

Snoke, on the other hand, may be working towards a similar end with Kylo Ren. Supposedly a perfect fusion of light and dark. A balance.

Perhaps the prophecy refers to Anakin's grandchild being the true Chosen One. And if Rey is Luke's daughter, Rey and Ren may be competing to fulfill the same prophecies.

Which could lead to all sorts of interesting parallels. Rey would be justifiably infuriated if her father left her in that desert he'll with no intention to return. He may tell her her father was one of the Jedi, destroyed by Ren. Which is all true... from a certain point of view. And she may be much less willing to stay out of things than he is if her friends are in trouble.

"Skywalker never told you what happened to your father..."