Possible Clues:

• Eerie feeling of repetition
• Having an unoriginal experience for all to see — against a Jedi's short return
• Experience of sensing something has happened before
• Feeling of having been there before
• Feeling of something having happened before
• Illusion of having been here before
• As seen before, a verse's put into Jude novel
• Sense of having been there before
• Literally, 'already seen'
• Real-life rerun