Anakin Skywalker started his journey with the lightsaber back when he was still learning about the force, and how to control it. He was found by Obi-wan on Tatooine as a kid and was taught by Obi-wan. He used the lightsaber on his journey to discover who he was. He lost it in episode 3 when he lost a fight to Obi-wan and had 3 limbs cut off and was burned. Obi-wan took his lightsaber, kept it and watched over Luke over the years to make sure Anakin (Darth Vader) never found his son after he turned to the dark side and joined the Emperor to take over the galaxy. …show more content…
Later Luke gets his hand cut off by Vader when Vader was trying to get Luke to join the dark side. The lightsaber was in Luke’s hand at the time, and it fell along with his hand under cloud city. It's a symbol that represents the good left inside Vader and shows how now he is willing to hurt his own son just to take over the galaxy. In episode 6 Luke has a green saber and uses that from now on. Also in episode 6 Vader’s good comes back to him when The Emperor was about to kill Luke with his force lightning and sacrifices himself to save Luke. The lightsaber has an important role in episode 7, but I know some people still haven't seen it and it contains spoilers so I will not talk about