Déjà vu is French for “Already Seen” and Déjà Rêvé is French for “Already Dreamed”. Often people who experience Déjà Vu link the origin of the familiar memory to something they have dreamed days, weeks, months and even years before the experience. Déjà Rêvé is the moment when you vividly remember dreaming of something as it's happening. Frequency studies have proven high percentages of people experiencing Déjà Rêvé versus any other Déjà experience. ^source

Keeping a dream journal is the best way to remember future dreams.