If you remembers this badass dude up here,you must know how he died,This dude name is Anakin Skywalker aka The Darth Vader,but some say that Anakin is still alive,even though that his son,Luke Skywalker burned his body.
And after Luke Skywalker burned his body,he returned to Leia Organa or Leia Skywalker and Hans Solo,he sat on a wodden like-bench and saw Obi Wan Kenobi,Yoda and Anakin Skywalker
But in the [Star Wars: Episode VII — The Force Awakens](tag:711158) trailer #2,we saw Darth Vader's helmet.
Then we will see a picture of Luke Skywalker while touching the head of R2D2 near a fire,he said “My father has it"(Force) and he said it again “My sister has it".
But some Jedi don't died like that,they maybe turned into a ghost like Obi Wan and Yoda,well as you can see the picture on tier number 2,there is the spirit of Obi Wan,Master Yoda and Anakin.So that's mean their spirit never dies.
Is Anakin alive?
His spirit of Jedi is but his body isn't.So he is not going to be in the Star Wars Episode VII:The Force Awakens.
I don't know about your thought of mind but tell me If I'm wrong.