A figure from the past

Lastly, we reach one of the most interesting questions – why did Luke choose to seclude himself, when he could have easily (we guess) defeat the First Order?

While this isn’t an actual scene which was shot, J. J. Abrams actually intended to have Anakin Skywalker appear in the movie, as a Force ghost. The idea was to show his dual nature, as being torn between the Dark and the Light side of the Force, never being able to choose between them.

It sounds pretty weird bringing Hayden Christensen back into the Star Wars universe, with his wooden acting. But this would have made a point – that all Skywalkers can acknowledge and harness both the darkness and the light inside them.

Just like it happened with Anakin, it also happens with Luke – which pretty much explains why he chose to leave the scene. Luke realizes that one cannot separate within himself the Dark and the Light. Basically, there is evil in each one of the characters, regardless of the path consciously chosen. And with this revelation, Luke maybe realizes that he is a relic of the past.

This isn’t a full-blown explanation, of course. But this scene, with Anakin as a Force ghost unable to choose either Dark or Light would have made a very good addition (of course, we’d very much like to hear your opinion about this).