Darth tells Luke in Episode 6 (ROTJ)...     "You don't know the power of the dark side, I MUST obey my master"   But why? Why must Darth Vader obey his master?
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In Episode VI, during their conversation before meeting the Emperor, Luke asks Vader to give up on the Emperor and join him instead, at which Vader replies: "You don't know the power of the Dark Side, I must obey my master".  What does this mean? Is Vader somehow afraid of the Emperor?  P.S. Please do not say it was a lie, a deceptive trick to get Luke to join the Dark Side, because clearly it has nothing to do with that.
43878
In Star wars: IV A New Hope, Obi-Wan says to Darth Vader:     You can't win, Darth. If you strike me down, I shall become more powerful than you could possibly imagine.    What did he mean by this? Was he bluffing? Was he alluding to him being able to help Luke as a Force Ghost? Or was he talking on behalf of The Force?
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In almost every canon (that is, visual) source, Force users typically wave a hand to invoke the Force to move or manipulate objects, people and thoughts. I get out-of-universe this is a visual cue that the Force is being used, but in-universe is it strictly necessary?  (The only exception I can think of is when Luke is training on Dagobah and is balancing rocks while standing on one hand with Yoda on his foot. He doesn't appear to be waving his hand to move the rocks.)  Is this addressed anywhere in-universe, even in Legends?
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Luke hid his Lightsaber in R2D2 to aid in the rescue.  So, how did Luke know that Jabba would bring R2D2 where they would be executed?  I could guess "Force vision", but I'm looking for canon confirmation.
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In the Revenge of the Sith, when Count Dooku had Chancellor Palpatine captured, did he actually know that Palpatine was the same person as his master Darth Sidious?   If he did, then why didn't he expose Palpatine when the latter ordered Anakin Skywalker to kill him?
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In the film, Han says:     “He was training a new generation of Jedi. There was no one else left to do it, so he took the burden on himself. Everything was going good, until one boy, an apprentice, turned against him and destroyed it all. Everything Luke had worked toward: gone. Luke felt responsible. He walked away from everything.”   So what became of this "new generation of Jedi?"  The way Han phrases it, it is pretty clear that the betrayer was not the only apprentice.  Even if they never completed their training, where are there other people that      learned the ways of the Force from Luke?
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Obi-Wan tells Anakin that "Only the Sith deal in absolutes", and uses that as his identification that Anakin had actually turned to the Dark Side.  But it would seem the statement itself "Only the Sith deal in absolutes" would be an absolute statement itself, and that his rash actions based on this single statement is just as 'Sith-like' as Anakin's statement of "Either you're with me or against me" (paraphrased, I forget the exact statement.)  Is this not a very clear indicator that the Dark Side is present in all who use the force, and reinforces Palpatine's assertion that the Jedi are simply blind to the powers of the dark Side instead embracing their full potential?
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In The Force Awakens, on the bridge, it's not clear to me if Han goes into his confrontation with Kylo Ren expecting the outcome, e.g.      that his son will kill him.    much less expecting to help Kylo Ren complete his task. If that's the case, I don't understand why things needed to work out the way they did.   Why does Kylo Ren have to go through with it if he's conflicted  Why would he need Han's help?  What obligation is holding him to completing this task?  Why not just decide to turn to the light?
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At the end of Revenge of the Sith, the Emperor knows thats Yoda is alive.  Why would he not make that the first priority of the Empire?  Yoda would be the one Jedi of all the Jedi you would not want alive, so why overlook this?
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In The Force Awakens, Kylo Ren and General Hux go talk to someone who is shown as the hologram of a big, weird, and scary guy. They call him “Supreme Leader,” and he seems to be the power behind the ruler.  Who is he? Where does he come from? How was he tied into all of this?
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Wasn't it a risk for Dooku to tell Obi-Wan the truth about Darth Sidious?  Count Dooku: What if I told you that the Republic was now under the control of a Dark Lord of the Sith? Obi-Wan: No, that's not possible. The Jedi would be aware of it. Count Dooku: The dark side has clouded their vision. Hundreds of senators are now under the influence of a Sith Lord called Darth Sidious.  Did Dooku tell Obi-Wan the truth simply because he knew the Jedi wouldn't believe him anyway? Why tell Obi-Wan? Note: this question was inspired by the question at
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In all the action scenes I'm familiar with, the Force is used only on people or objects nearby within visual sight of the Force user.  However there are situations where force users can sense something outside their own physical perception limitations, such as when Vader knows that Luke is on a particular space craft, or when a million voices cried out and were silenced.  Given that Vader force chokes someone who failed him, is it possible for him to force choke someone who failed him, but isn't in the same room, or on the same planet?  Does Luke's ability to sense when his friends are in danger also suggest that he is able to help them at a distance, or communicate with leia at a distance?
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Kylo Ren is obsessed with Darth Vader and vows to finish what he started.  He wields a red lightsaber.  He opposes the Jedi.  He fights for the Empire... err First Order  Does that mean he is a Sith?
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From the :  Alarms sound throughout the hidden Rebel base.  In the control room, a  controller urgently gestures for General Rieekan to check a computer  scan.              CONTROLLER     General, there's a fleet of Star      Destroyers coming out of hyperspace      in sector four.              RIEEKAN     Reroute all power to the energy      shield.  We've got to hold them till      all transports are away.  Prepare      for ground assault.  Rieekan exits hurriedly.   [...]               VADER     What is it, General?              VEERS     My lord, the fleet has moves out      of light-speed.  Com-Scan has      detected an energy field protecting      an area around the sixth planet of      the Hoth system.  The field is      strong enough to deflect any      bombardment.              VADER         (angrily)     The Rebels are alerted to our      presence.  Admiral Ozzel came out      of light-speed too close to the      system.              VEERS     He felt surprise was wiser...              VADER     He is as clumsy as he is stupid.     General, prepare your troops for a      surface attack.              VEERS     Yes, my lord.   Why exactly was this a bad idea, and what was Vader's preferred strategy? The Rebels can apparently raise their shield instantly, so it seems like they would do that anyway, surprised or no. In fact, since being surprised gives them less time to prepare, it seems like this is a good strategy on the Empire's part.  Is the issue that the Imperial forces didn't have enough time to prepare, and it would have been better to come in farther out and spread out, as  says? If so, why wouldn't forming up while already in the system also give the Rebels warning, and give them even more time to escape? All I can really think of is that they would have somehow known the range of the Rebel sensors, dropped out of hyperspace just past them, formed up, then quickly flown into range, but that seems hard to infer from the exchange between Vader and Veers.
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We all knew from ANH that Leia was on a mission to bring Obi-Wan to Alderaan.  Now, in Rogue One we saw Mon asking Bail Organa to call "his jedi friend". Since Yoda always took a position of leadership both among the Jedi Order and among the Republic, shouldn't the Alliance have called for him, instead of Obi-Wan? Bail also knew that Yoda was in hiding, they meet together at the end of Episode III.  I realize that Yoda is in hiding so the Emperor and Vader would not feel his presence. Also, I know he said to Obi-Wan:     Yoda: Until the time is right disappear, we will.   Meaning they would stay in hiding until it was time to train Luke. But, since you are already going to call for a Jedi for help, why Obi-Wan and not Yoda? Or even both?
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I always wondered why Admiral Motti and Governor Tarkin in the movie  insinuate that the Force is an old, dead religion?  :     The Jedi are extinct, their fire has gone out of the universe. You, my friend, are all that's left of their religion.   :     Don't try to frighten us with your sorcerous ways, Lord Vader. Your sad devotion to that ancient religion has not helped you conjure up the stolen data tapes, or given you clairvoyance enough to find the rebels' hidden fortress...   Tarkin, as human, must be around age 50, so, if in Episode IV Luke is about 20, when he was just born at the end of Episode III, Tarkin must have been around 30, so a perfect young man in a Galaxy that used to know Jedis, Jedi Council, Force etc..  Why, 20 years later, he just looks like someone who never saw a Jedi/Sith? Also, besides from Force sensitives (Obi-Wan, Yoda, Vader, the Emperor), nobody else looks like they ever heard of the Force ... that's really weird, isn't it?
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I don't know the exact significance of the word "Darth" in the Sith world, but I think it was a word of honor for powerful Sith. That's why Anakin was given this word in his new name.  All powerful Sith in canon had this word in their names: Darth Plagueis, Darth Bane, Darth Sidious, Darth Vader, Darth Maul, etc. As such name similarity can't be names given by their parents, I can assume they were given such words in names as a honor.   Now, look at Count Dooku... he was a powerful Sith too. So, why wasn't he given this title?    Darth word to address Dooku hasn't been used in the movies, as far as I know. If you are claiming that Darth and Lord words are same, give citations because my vocabulary rejects it.