Originally posted by Darth Destroyer
I believe that those strong in the force leave behind an impression through the force that is where the spirit like figures come from.
Well, 5 years after a barely trained Padawan Revan visited a crystal cave, Kreia and the Exile could sense that Revan had passed through there.
Hm. A few things...
These Jedi Knight Lights... are force ghosts. They only exist if the user is a follower of the light side of the force when they finally pass. Anakin existed because he was redeemed before he died. That's how they exist. It's not power related. Though power does dictate how long they remain. Though I must ask, if Anakin was so powerful and could stay as long as he wanted, how many times did he contact Luke after he died?
Second, Yoda was not powerful enough to take out Dooku or Sidious, and he was afraid of Anakin in a sense. Add to that that he is well past his prime and Revan was a master in the golden era of Sith and Jedi alike and we have a victory here.
I notice that this also supports the idea that force ghost are capable of lasting an extremely long time and I am unsure if Adjuta Pall was stronger than Obi-won. It is strange that he still able to talk as a ghost after about21000 years (Obi-won was unable to talk to Luke afer about five), much less fight.
Which is your right and choice, of couse.
*Reports him to the Sith for potential reeducation*
But as for Revan being good, apparently the light side ending was the true one. The chronicles were quite vague, and neccessarily so since they were basically a prelude to The Sith Lords. That being said, Revan did embrace the light once again. Even as a Sith, his actions were dark but made in earnest towards a greater good. It is said in order to become the Republic's hero he must first become it's greatest villain.