EDIT: I just went off on a rant about why the hell does everything have to be rationalised/explained and why can't people just accept that Luke had a touch of Deja-Vu probably due to the fact that he was in the process of fulfilling his destiny. Suffice to say the rant was strongly worded and all in capital letters.

Star Wars is a magical, mystical tale. A character saying there's something familiar about a place doesn't need any explaining. We don't need to see baby Luke visiting Dagobah. We don';t need to see him having a dream at age 10, or Yoda implanting images in his mind from afar.

Geez I hate all this prequel rationalisation bullshit. The true essence of Star Wars is truly getting lost.