You must not go! But Han and Leia will die if I don't. You don't know that. Even Yoda...

[Yoda tries to convince Luke not to leave] Yoda: You must not go! Luke: But Han and Leia will die if I don't. [Obi-Wan's Force-spirit suddenly appears] Obi-Wan: You don't know that. Even Yoda cannot see their fate. Luke: But I can help them! I feel the Force! Obi-Wan: But you cannot control it. This is a dangerous time for you, when you will be tempted by the Dark Side of the Force.

I can't keep the vision out of my head. I've gotta help them. You must not go. - But Han and Leia will die if I don't. - You don't know that. Even Yoda cannot see their fate. But I can help them. I feel the Force. But you cannot control it. This is a dangerous time for you... when you will be tempted by the dark side of the Force. Yes, yes. To Obi-Wan you listen. The cave. Remember your failure at the cave. But I've learned so much since then. Master Yoda, I promise to return and finish what I've begun. You have my word. It is you and your abilities the emperor wants. That is why your friends are made to suffer. That's why I have to go. Luke, I don't want to lose you to the emperor the way I lost Vader. You won't. Stopped they must be. On this all depends.