xyz, it would help a bit if your jokes were actually funny.
Now, moving on, you'll notice Force Lightning isn't just a narrow stream of lightning, it arcs out. Obviously if someone held a lightsaber up, it wouldn't all just go straight into that, like, say, blocking a blaster bolt, because it spreads further than the lightsaber. So, I would say that it does look like they have to use the force to channel the lightning into their saber. Notice how blocking Palpatine's lightning was slowly draining Mace?
Also, it's quite possible that Yoda didn't teach Luke the Force Absorb technique, or that Luke wasn't powerful enough to use it anyway.
luke didnt use vaders lightsabre because it had fallen down into the abyss and he didnt use his because if he had then he would have become angry and would have been one step closer to becoming the emporers agent of evil. we could say why didnt obi-wan show up in ghost form to 'scare' the emporer away but we wont will we.
Originally posted by steverules
Why did he throw his lightsabre away anyway?
I don't think he could have called his lightsabre to him, but I think he could have called his fathers lightsabre to him cause I think that on one of the barrels, when luke goes over to his father I swear that u could see vaders decapitated hand on one of those barrel thing's so that could mean that his fathers lightsabre was near.
Luke throws the lightsaber away to prove to Palp that he will not turn to the darkside and that he is a Jedi.
He threw his saber down in the exact same way he jumped to his death in Empire Strikes Back, he had to defy the emperor.
He did say he wanted to turn Vader back, and was trying hard. He still hung on to his hope that Anakin would return, even when he was dying, and his faith was rewarded.
It's a plot point to show that love and faith are ultimately more powerful than physicality and violence.
It's made even more clear in Episode III. Windu had no faith in Anakin, and his lack of compassion led to his downfall, as Anakin turns on him. Luke instead decides to rely on Anakin, which brings out the good in him.
The fight with the darkside could not be decided with a lightsaber. A lightsaber could not redeem his father, only trust and love could do that.
If he wasn't coming back with his father, he wasn't coming back at all.
That's the impression I got.