Dean: All right, well if it wasn't Bobby, then what Jedi'd that sword into my hand?
Referencing the Star Wars series and the Jedi Knights. The Jedi Knights are the "good" protectors of the galaxy, capable of tapping into the mystic Force to gain a variety of powers such as mind control and telekinesis. They avoid strong emotion, which can lead them to the Dark Side, the "evil" side of the Force. The Jedi and the Force are first mentioned in Star Wars Episode IV: A New Hope (1977).