The Scene: At Yoda’s behest, Luke walks into a cave. Inside, he’s confronted by Darth Vader. A fight ensues in which Luke beheads his opponent, only to discover his own face under Vader’s mask. It has all been an illusion.
George Lucas Says (via The Empire Strikes Back commentary track): “Part of the [cave scene] is learning about the Force, learning the fact that the Force is within you and at the same time you create your own bad vibes. So if you think badly about things, or you act badly, or you bring fear into a situation, you’re going to have to defend yourself, or you’re going to have to suffer the consequences of that. In this particular case, he takes his sword in with him, which means he’s going to have combat. … He is creating this situation in his mind, because on a larger level, what caused Darth Vader to become Darth Vader is the same thing that makes Luke bring that sword in with him. … [Luke] has the capacity to become Darth Vader, simply by using the hate, and fear, and using weapons, as opposed to using compassion, caring, and kindness.”
I Say: This is probably blasphemous to many, but those words from Lucas being to mind a line from The Phantom Menace: “Your focus determines your reality.” Lucas may suck at writing dialogue, but at least he’s consistent.
Something I’ve always been a little unsure of is Yoda’s relationship to the cave. On this same commentary track, Empire director Irvin Keshner says that Yoda is “setting it all up, what’s going to happen in the cave.” That always seemed to be the indication based on the cinematic language of this sequence. But if you listen to Lucas tell it, the cave seems to have mystical elements on its own, and Luke taps into them via his connection to the Force.
That idea is supported by other Star Wars creators as well, including Timothy Zahn in his Thrawn trilogy of books, and a recent Supreme Leader Snoke comic written by Tom Taylor.
I’m inclined to think this is a situation where everybody is right, and we just don’t know how all the dots are connected yet.
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